Transformer iron core clamp tightening structure

Abstract

The utility model discloses a transformer iron core clamp tightening structure, and particularly relates to the field of electrical equipment, the transformer iron core clamp tightening structure comprises an iron core body, the upper end and the lower end of the iron core body are respectively provided with two sheet plates, the two sheet plates are symmetrically arranged on the two sides of the iron core body, the two sheet plates are provided with weftless tapes, and the weftless tapes are used for fixing the sheet plates on the iron core body; the two sheet plates are respectively provided with two notches, the weftless tape sequentially penetrates through the notches and is located on the outer side of the iron core body, the weftless tape is in a U shape with an opening in one side, connecting pieces are arranged between the two ends of the opening of the weftless tape and the sheet plates, and the connecting pieces are used for fixing and adjusting the weftless tape. According to the utility model, through the connecting piece, not only can the sheet plate be quickly disassembled and assembled, but also the weftless tape can be taken up and paid off, the operation is simple, the consumed time is short, and the binding efficiency of the iron core body can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to power equipment technical field more specifically, the utility model relates to a kind of transformer core clamp piece tightening structure. BACKGROUND

[0002] A transformer is a stationary electrical device that uses the principle of electromagnetic induction to change the magnitude of alternating current voltage. The basic construction of a transformer includes two or more windings (coils) that are wound around a shared core, which includes legs and yokes. The windings are wound around the legs, and the yokes are located at the top and bottom of the core, along with the legs, to form a closed magnetic circuit.

[0003] In the process of using large transformers, when installing the legs and yokes, a clamp is generally used on the outside of the yoke, and then a component is used on the outside of the clamp to provide a tightening force to the clamp, ensuring that the clamp on the outside is tightened, fixing the upper and lower yokes, and ensuring that the yoke pieces do not shift, thereby installing the yokes on the top and bottom of the legs. However, in the above-mentioned scheme, the component that provides the tightening force to the clamp mostly adopts two yoke binding structures. One is a steel cable or a tension screw tightening and fixing structure, and the other is a tightening and fixing structure using a weftless tape. In the existing technology, a support iron is welded on both sides of the clamp to fix the yoke by placing a steel cable and a tension screw.

[0004] However, in actual use, the structure adopted by the existing technology is relatively time-consuming in design, requires accurate angles, is difficult for workshop workers to install and operate, and has a long welding process and time. Therefore, a reliable and more simple fixing and binding method is needed. SUMMARY

[0005] The transformer core clamp piece tightening structure provided by the utility model solves the problem that the structure adopted by the existing technology is relatively time-consuming in design, requires accurate angles, is difficult for workshop workers to install and operate, and has a long welding process and time.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a transformer core clamp piece tightening structure, including core body, two sheet plates are arranged on the upper end and the lower end of the core body, the two sheet plates are symmetrically arranged on both sides of the core body, a weftless tape is arranged on the two sheet plates, the weftless tape is used to fix the sheet plates on the core body, two notches are arranged on the two sheet plates, the weftless tape passes through the notches in sequence and is located outside the core body, the weftless tape is in the shape of U with one side open, a connecting piece is arranged between the two ends of the opening of the weftless tape and the sheet plate, the connecting piece is used to fix and adjust the weftless tape, the connecting piece includes a limiting plate, a plurality of bolts are arranged on one side of the limiting plate, the connecting piece is clamped with the sheet plate through the bolts, a binding device is arranged on the limiting plate, one end of the weftless tape is connected with the binding device, the binding device is repeatedly pushed to control the tightening or loosening of the weftless tape.

[0007] In a preferred embodiment, the width of the limiting plate is smaller than the width of the slot, and the length of the limiting plate is larger than the length of the slot.

[0008] In a preferred embodiment, the fixed rod is sleeved with a roller, which is used to reduce the friction between the weftless tape and the slot.

[0009] In a preferred embodiment, the weftless tape is symmetrically provided with a pad plate, and the two pad plates are located in the gap between the two sheet plates.

[0010] In a preferred embodiment, the weftless tape is provided with two drying pieces, which are used to reduce the humidity of the weftless tape, and the drying piece comprises a drying box, both sides of which are provided with a connecting plate, and the opposite side of the two connecting plates is movably provided with a horizontal plate, which moves towards the inside or outside of the connecting plate to disassemble or assemble the drying box, and the two horizontal plates are embedded with a magnetic plate on one side, and the two magnetic plates are magnetically attracted.

[0011] In a preferred embodiment, the two sheet plates are provided with a support plate, which is used to support and position the sheet plate.

[0012] The beneficial effects of the present application are as follows:

[0013] 1. The connecting piece is arranged, the limiting plate passes through the slot, and the limiting plate is connected with the sheet plate through the bolt, and then the limiting plate is fixed on the sheet plate, and the weftless tape is tightened by the knob, so that the sheet plate can be fixed on the iron core body, the operation is simple, the iron core body can be quickly bound, and the efficiency of disassembling and assembling the sheet plate is improved.

[0014] 2. The drying piece is arranged, the drying box is fixed on the weftless tape through the horizontal plate, and the number of the drying box can be increased or decreased according to the size of the weftless tape, so that the humidity on the weftless tape can be reduced, the influence of the humidity on the weftless tape and the whole transformer is reduced, and the service life of the equipment is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0016] Figure 2 It is a schematic diagram of the side view structure of the weftless tape and the sheet plate.

[0017] Figure 3 It is a schematic diagram of the front view structure of the weftless tape and the sheet plate.

[0018] Figure 4 It is a schematic diagram of the rear view structure of the weftless tape and the sheet plate.

[0019] Figure 5The utility model discloses a drying box and no weft belt structure schematic view.

[0020] Figure 6 The utility model discloses a connecting plate and horizontal plate structure schematic view.

[0021] Figure 7 The utility model discloses a limiting plate and sheet plate structure schematic view.

[0022] The figure mark is: 1, iron core body, 2, sheet plate, 21, notch, 22, roller, 3, no weft belt, 4, connecting piece, 41, limiting plate, 42, bolt, 43, binding ware, 5, backing plate, 6, drying piece, 61, drying box, 62, connecting plate, 63, horizontal plate, 7, support plate. Specific implementation

[0023] The following detailed description of the application in conjunction with the drawings, it is necessary to point out here that the following detailed description is only used to further illustrate the application, can not be understood as limiting the scope of the application, the skilled person in the art can make some non-essential improvements and adjustments to the application according to the above application.

[0024] Refer to the description attached Figures 1 to 7 A transformer iron core clamp piece tightening structure, including iron core body 1, the upper end and the lower end of iron core body 1 are equipped with two sheet plates 2, two sheet plates 2 are symmetrically arranged on the both sides of iron core body 1, two sheet plates 2 are equipped with no weft belt 3, and no weft belt 3 is used to fix sheet plate 2 on iron core body 1, two sheet plates 2 are equipped with two notches 21, no weft belt 3 passes through notch 21 in turn, and is located on the outside of iron core body 1, no weft belt 3 is the U shape of one side opening, and both ends of no weft belt 3 opening are equipped with connecting piece 4 between sheet plate 2, and connecting piece 4 is used to fix and adjust no weft belt 3, connecting piece 4 includes limiting plate 41, limiting plate 41 one side is equipped with multiple bolts 42, connecting piece 4 is connected with sheet plate 2 through bolt 42, and limiting plate 41 is equipped with binding ware 43, and one end of no weft belt 3 is connected with binding ware 43, and binding ware 43 is repeatedly stirred, and is used to control the tightening or loosening of no weft belt 3.

[0025] In the above embodiment, the binding ware 43 is a tool used for fixing, packing and transporting articles in the industry production and packaging industry, which is an existing structure and is not explained.

[0026] Connecting piece 4 is only located on one of sheet plate 2, which is convenient for installing no weft belt 3 on iron core body 1.

[0027] It should be noted that the sheet plate 2 is placed on both sides of the core body 1, then the two ends of the non-woven tape 3 are connected with the binder 43 respectively, and then the limiting plate 41 at one end of the non-woven tape 3 is inserted through the notch 21 on the sheet plate 2, the limiting plate 41 is attached to the surface of the sheet plate 2, and the bolt 42 on the side of the limiting plate 41 is inserted into the corresponding hole on the surface of the sheet plate 2, so that the limiting plate 41 at one end of the non-woven tape 3 is fixed on the sheet plate 2.

[0028] The limiting plate 41 at the other end of the non-woven tape 3 is pulled, bypasses the outside of the core body 1, passes through the other notch 21 on the surface of the sheet plate 2, is fixed by the bolt 42, and then the limiting plates 41 at both ends of the non-woven tape 3 are fixed on the sheet plate 2, so that the non-woven tape 3 is installed on the outside of the core body 1.

[0029] By repeatedly pulling the binder 43, the non-woven tape 3 is tightened, the non-woven tape 3 is attached to the core body 1 and the sheet plate 2, so that the sheet plate 2 is fixed on the core body 1, and vice versa. The above steps are reversed, so that the sheet plate 2 can be disassembled, which is simple to operate and can quickly install the sheet plate 2.

[0030] Further, the width size of the limiting plate 41 is smaller than the width size of the notch 21, and the length size of the limiting plate 41 is greater than the length size of the notch 21.

[0031] It should be noted that because the length of the limiting plate 41 is greater than the length of the notch 21, when the limiting plate 41 passes through the notch 21, the limiting plate 41 is transverse to the notch 21, and then the limiting plate 41 is fixed on the sheet plate 2 by the pulling force of the non-woven tape 3, which further improves the stability of the limiting plate 41.

[0032] Further, referring to the drawings Figure 4 The two notches 21 are provided with a fixed rod, and the fixed rod is provided with a roller 22, and the roller 22 is used to reduce the friction between the non-woven tape 3 and the notch 21.

[0033] It should be noted that when the non-woven tape 3 is tightened by the binder 43, the non-woven tape 3 will generate friction with the notch 21, which will affect the service life of the non-woven tape 3 after a long time of use, and will cause the non-woven tape 3 to break. By contacting the non-woven tape 3 with the roller 22, the roller 22 rotates on the fixed rod, thereby avoiding the friction between the non-woven tape 3 and the notch 21

[0034] Further, referring to the drawings Figure 2 The inner side of the non-woven tape 3 is provided with a spacer 5, and the two spacers 5 are located at the gap between the two sheet plates 2.

[0035] It should be noted that the mat 5 is used to isolate the weftless tape 3 from the core body 1, which can not only reduce the pressure of the weftless tape 3 on the core during the fastening process, but also protect the silicon steel sheet from damage. Since the mat 5 is made of insulating material, it can also enhance the insulation performance of the core, reduce the magnetic flux leakage and eddy current loss, and thus improve the overall efficiency of the transformer.

[0036] Further, referring to the drawings attached in the specification Figure 2 、 Figure 5 and Figure 6 , the weftless tape 3 is provided with two drying pieces 6, which are used to reduce the humidity of the weftless tape 3. The drying piece 6 comprises a drying box 61, and the two sides of the drying box 61 are provided with connecting plates 62. The two connecting plates 62 are movably provided with horizontal plates 63 on one side. The horizontal plates 63 move towards the inner side or the outer side of the connecting plate 62, which is used to disassemble and assemble the drying box 61. The two horizontal plates 63 are embedded with magnetic plates on one side, and the two magnetic plates are magnetically attracted.

[0037] It should be noted that the drying box 61 is placed on the weftless tape 3, and the magnetic plates on the inner side are connected by pushing the horizontal plate 63. The drying box 61 can be quickly installed on the weftless tape 3, and the number of drying boxes 61 can be increased or decreased according to the size of the weftless tape 3. Not only can the weftless tape 3 be partially dried, but also the humidity on the outer side of the weftless tape 3 can be reduced, thereby increasing the service life of the transformer equipment.

[0038] Since the drying box 61 stores activated carbon particles inside, it can further reduce humidity.

[0039] Further, referring to the drawings attached in the specification Figure 1 , the two sheet plates 2 are provided with a support plate 7, which is used to support and position the sheet plate 2.

[0040] It should be noted that the support plate 7 is installed on the sheet plate 2, which can position the position of the sheet plate 2 according to the size of the support plate 7, and facilitate the quick installation of the sheet plate 2.

[0041] Working principle: first, place the sheet plate 2 on both sides of the core body 1, then pass the weftless tape 3 through the sheet plate 2 and the core body 1, so that the limiting plate 41 at both ends of the weftless tape 3 is located on one of the sheet plates 2, and the limiting plate 41 is installed on the sheet plate 2 through the bolt 42, then tighten the weftless tape 3 by turning the binder 43, and make the mat 5 contact with the core body 1, so as to fix the sheet plate 2 on the core body 1.

[0042] Then, place the drying box 61 on the weftless tape 3, and fix the drying box 61 through the horizontal plate 63, which can reduce the humidity on the weftless tape 3, reduce the influence of humidity on the weftless tape 3 and the whole transformer, and prolong the service life of the equipment.

[0043] When the sheet plate 2 needs to be replaced, the weftless tape 3 is loosened through the binder 43, then the latch 42 is separated from the sheet plate 2 by pulling the limiting plate 41, and the limiting plate 41 is taken off from the sheet plate 2 through the slot 21, so that the sheet plate 2 can be quickly disassembled and assembled, thereby improving the efficiency of the installation of the sheet plate 2.

[0044] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be pointed out that, for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. A transformer core clamp structure comprising a core body (1), characterized by: The iron core body (1) is provided with two sheet plates (2) at the upper end and the lower end, the two sheet plates (2) are symmetrically arranged on the two sides of the iron core body (1), and a weftless tape (3) is arranged on the two sheet plates (2); the weftless tape (3) is used for fixing the sheet plate (2) on the iron core body (1); Two notches (21) are arranged on the two sheet plates (2), the weftless tape (3) sequentially passes through the notches (21) and is located outside the iron core body (1), the weftless tape (3) is in a U shape with one side open, and connecting pieces (4) are arranged between the two ends of the opening of the weftless tape (3) and the sheet plate (2); the connecting pieces (4) are used for fixing and adjusting the weftless tape (3). The connecting piece (4) comprises a limiting plate (41), a plurality of bolts (42) are arranged on one side of the limiting plate (41), the connecting piece (4) is clamped with the sheet plate (2) through the bolt (42), a binding device (43) is arranged on the limiting plate (41), one end of the weftless tape (3) is connected with the binding device (43), and the binding device (43) is repeatedly stirred to control the tightening or loosening of the weftless tape (3).

2. A transformer core clamp structure according to claim 1, characterized in that: The width size of the limiting plate (41) is smaller than the width size of the notch (21), and the length size of the limiting plate (41) is greater than the length size of the notch (21).

3. A transformer core clamp structure according to claim 2, wherein: Two fixing rods are arranged in the two notches (21), a roller (22) is sleeved on the fixing rod, and the roller (22) is used for reducing the friction between the weftless tape (3) and the notch (21).

4. A transformer core clamp structure according to claim 3, wherein: Symmetrical gaskets (5) are arranged on the inner side of the weftless tape (3), and the two gaskets (5) are located at the gap between the two sheet plates (2).

5. A transformer core clamp structure according to claim 4, wherein: Two drying devices (6) are arranged on the weftless tape (3), the drying devices (6) are used for reducing the humidity of the weftless tape (3), the drying device (6) comprises a drying box (61), connecting plates (62) are arranged on the two sides of the drying box (61), and horizontal plates (63) are movably arranged on the opposite sides of the two connecting plates (62); the horizontal plates (63) move towards the inner side or the outer side of the connecting plate (62) to disassemble or assemble the drying box (61), and magnetic attraction plates are embedded on the sides of the two horizontal plates (63) facing each other.

6. A transformer core clamp structure according to claim 5, wherein: Support plates (7) are arranged on the two sheet plates (2), and the support plates (7) are used for supporting and positioning the sheet plates (2).

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