Novel iron core clamp structure

Abstract

The utility model discloses a novel iron core clamping piece structure which comprises an iron core, a lower clamping piece and an upper clamping piece are arranged at the upper end and the lower end of the iron core respectively, the lower clamping piece and the upper clamping piece are symmetrically arranged on the front side and the rear side of the iron core, and a tensioning screw rod is installed between the edges of the symmetrically-arranged lower clamping piece. A tensioning screw rod is also mounted between the edges of the symmetrically arranged upper clamping pieces; a plurality of upper and lower clamping piece connecting plates are arranged between the lower clamping piece and the upper clamping piece at intervals, assembling parts are arranged at the two ends of each upper and lower clamping piece connecting plate, and assembling grooves matched with the assembling parts are formed in the lower clamping piece and the upper clamping piece; the fastening bolt is screwed at the end of the upper and lower clamp connecting plate, so that one end, far away from the end of the upper and lower clamp connecting plate, of the fastening bolt is tightly attached to the surface of the fixing block, the middle of the clamp is recovered to be flush with the end of the upper and lower clamp connecting plate, and the end of the upper and lower clamp connecting plate can be effectively prevented from falling off an assembly groove. The upper clamping piece can conveniently drive the lower clamping piece through the upper and lower clamping piece connecting plate in the hoisting process, the whole is formed into a whole, and the connecting strength is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to transformer technical field, concretely is a novel iron core clamp piece structure. BACKGROUND

[0002] The transformer is an important electrical device in the power system, which has an iron core. The iron core is stacked by multiple iron plates and is fixed by clamps. In order to form a frame structure of the clamp, improve the firmness of the iron core, and enable different clamps to support each other during hoisting of the iron core, the clamps are connected by upper and lower clamp connecting plates.

[0003] At present, the connection mode of the upper and lower clamp connecting plates and the clamp is generally to directly open an assembly groove on the clamp, which is matched with the end of the upper and lower clamp connecting plates. The end of the upper and lower clamp connecting plate is embedded in the assembly groove, which realizes the function that the upper clamp drives the lower clamp to move through the upper and lower clamp connecting plates. However, this connection mode has certain problems. After the clamp edges on the front and back sides of the iron core are tensioned by the tensioning screw, the middle part of the clamp will be deformed and separated from the end of the upper and lower clamp connecting plate. Therefore, during hoisting, the end of the upper and lower clamp connecting plate is easy to accidentally fall off from the assembly groove, which will affect the normal progress of hoisting operation. Therefore, we propose a novel iron core clamp structure to prevent the upper and lower clamp connecting plate and the clamp from being separated from each other. SUMMARY

[0004] The utility model aims at improving and innovating in view of the shortcomings and problems in the background art, and provides a novel iron core clamp structure.

[0005] A novel iron core clamp structure, comprising an iron core, a lower clamp and an upper clamp are arranged on the upper and lower ends of the iron core respectively, the lower clamp and the upper clamp are symmetrically arranged on the front and back sides of the iron core, a tensioning screw is installed between the symmetrically arranged lower clamp edges, and a tensioning screw is also installed between the symmetrically arranged upper clamp edges.

[0006] A plurality of upper and lower clamp connecting plates are arranged between the lower clamp and the upper clamp, assembly parts are arranged at both ends of the upper and lower clamp connecting plates, assembly grooves matched with the assembly parts are opened on the lower clamp and the upper clamp.

[0007] Corresponding fixing blocks are installed on the lower clamp and the upper clamp, the fixing blocks are used for fastening bolts to pass through, the front end of the fastening bolt is threadedly connected with a threaded hole on the assembly part, and the end of the fastening bolt away from the assembly part is abutted with the surface of the fixing block.

[0008] Further, the assembly groove is a dovetail groove or a T-shaped groove.

[0009] Further, a through hole is formed on the fixing block for fastening the bolt, and the diameter of the through hole is larger than that of the through hole.

[0010] Further, a fastening nut is installed on the fastening bolt, and the fastening nut abuts against the surface of the fixing block.

[0011] Further, a gasket is arranged between the fastening nut and the fixing block.

[0012] Further, the lower clamp and the upper clamp are both channel steels.

[0013] Further, a foundation bolt is installed on the lower surface of the lower clamp through the bolt.

[0014] Further, an eye bar is installed on the upper clamp.

[0015] Compared with the prior art, the utility model has the beneficial effects that: through the cooperation of the clamp, the fixing block, the upper and lower clamp connecting plates and the fastening bolt, when the lower clamp between the front and rear sides of the iron core and the upper clamp are tensioned through the tensioning screw, the middle part of the clamp is separated from the end part of the upper and lower clamp connecting plates due to the bending deformation; the fastening bolt is screwed on the end part of the upper and lower clamp connecting plates, so that one end of the fastening bolt away from the end part of the upper and lower clamp connecting plates is tightly attached to the surface of the fixing block, thereby restoring the middle part of the clamp to be flush with the end part of the upper and lower clamp connecting plates, so that the end part of the upper and lower clamp connecting plates can be effectively prevented from falling off the assembly groove; the upper clamp drives the lower clamp through the upper and lower clamp connecting plates during the hoisting process, so that the whole is integrated and the connection strength is high; in addition, even if the length of the fastening bolt does not match the thickness of the end part of the upper and lower clamp connecting plates and the fixing block, the fastening nut can also be tightly attached to the surface of the fixing block, so that one end of the fastening bolt away from the end part of the upper and lower clamp connecting plates is tightly attached to the surface of the fixing block. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating labor.

[0017] Figure 1 It is a front structure schematic view of a novel iron core clamp structure provided by the embodiments of the utility model.

[0018] Figure 2 It is a front structure schematic view of a novel iron core clamp structure provided by the embodiments of the utility model. Figure 1 It is a local enlarged structure schematic view of A in the middle.

[0019] Figure 3 A side structure schematic view of a novel iron core clamp structure provided by the embodiment of the present application is shown in the figure.

[0020] Figure 4 A side structure schematic view of a novel iron core clamp structure provided by the embodiment of the present application is shown in the figure.

[0021] Reference signs: 1, iron core; 2, lower clamp; 3, upper clamp; 4, upper and lower clamp connecting plate; 401, assembly part; 5, anchor; 6, lifting lug; 7, tensioning screw; 8, fixing block; 9, fastening bolt; 10, through hole; 11, fastening nut; 12, gasket; 13, insulation layer; 14, assembly groove. DETAILED DESCRIPTION

[0022] In order to make the purpose, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0023] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can be present.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

[0025] Please refer to Figures 1-4 The present application provides a novel iron core clamp structure, which comprises an iron core 1, clamp elements are arranged on the upper and lower ends of the iron core 1 respectively, the lower end of the iron core 1 corresponds to a lower clamp 2, and the upper end of the iron core 1 corresponds to an upper clamp 3; and the lower clamp 2 and the upper clamp 3 are symmetrically arranged on the front and back sides of the iron core 1, so that the upper end of the iron core 1 is clamped between the symmetrically arranged upper clamps 3, and the lower end of the iron core 1 is clamped between the symmetrically arranged lower clamps 2.

[0026] To tighten the two lower clamping pieces 2 or the upper clamping pieces 3, tensioning screws 7 are installed between the edges of the symmetrically arranged lower clamping pieces 2, and tensioning screws 7 are also installed between the edges of the symmetrically arranged upper clamping pieces 3. The tensioning screws 7 pass through the lower clamping pieces 2 and the upper clamping pieces 3 and are fitted with nuts. By tightening the nuts, the two lower clamping pieces 2 are tightly fitted to the lower end of the iron core 1, and the two upper clamping pieces 3 are tightly fitted to the upper end of the iron core 1. This allows the two lower clamping pieces 2 to clamp the lower end of the iron core 1, and the two upper clamping pieces 3 to clamp the upper end of the iron core 1.

[0027] A plurality of upper and lower clamping member connecting plates 4 are spaced apart between the lower clamping member 2 and the upper clamping member 3, and the upper and lower clamping member connecting plates 4 are symmetrically arranged on the front and rear sides of the iron core 1. Each of the upper and lower clamping member connecting plates 4 has an assembly part 401 at both ends, and the lower clamping member 2 and the upper clamping member 3 are equipped with fixing blocks 8 corresponding to the assembly parts 401; the lower clamping member 2 and the upper clamping member 3 are provided with assembly grooves 14 adapted to the assembly parts 401; the fixing blocks 8 corresponding to the assembly parts 401 are installed on the lower clamping member 2 and the upper clamping member 3, and the fixing blocks 8 are used to abut against the assembly parts 401 to prevent the assembly parts 401 from disengaging from the assembly grooves 14. Through the cooperation of the assembly part 401 and the assembly slot 14, the upper clamp 3 can drive the lower clamp 2 through the upper and lower clamp connecting plate 4 during the hoisting process, forming an integral whole with high connection strength; while the fixing block 8 abuts against the assembly part 401, which can prevent the assembly part 401 from detaching from the assembly slot 14, thereby improving the reliability and stability of the hoisting process of the assembly part 401 and the assembly slot 14.

[0028] Preferably, the assembly groove 14 is a dovetail groove or a T-shaped groove.

[0029] It should be noted that after the lower clamp 2 and the upper clamp 3 on the front and rear sides of the iron core 1 are tensioned by the tensioning screw 7, the middle of the clamp will bend and deform, that is, a hollow structure will be formed between the middle of the clamp and the assembly part 401. This will cause the fixing block 8 on the clamp to no longer abut against the assembly part 401, which will cause the assembly part 401 to detach from the assembly groove 14 during hoisting. Therefore, in this embodiment, a through hole 10 for the screw of the fastening bolt 9 is provided on the fixing block 8. The diameter of the through hole 10 is larger than the diameter of the screw of the fastening bolt 9. The front end of the fastening bolt 9 is threadedly connected to the threaded groove on the assembly part 401, and the nut of the fastening bolt 9 abuts against the surface of the fixing block 8, so that the middle of the clamp is restored to be flush with the end of the upper and lower clamp connecting plate 4. This can effectively prevent the end of the upper and lower clamp connecting plate 4 from falling out of the assembly groove 14. It also facilitates the upper clamp 3 to drive the lower clamp 2 through the upper and lower clamp connecting plate 4 during hoisting, forming an integral whole with high structural strength.

[0030] It should be noted that, due to the installation of fastening bolt 9, the grounding wire can be easily tightened at fastening bolt 9, thereby facilitating transformer grounding.

[0031] Preferably, a fastening nut 11 is installed on the threaded shaft of the fastening bolt 9. The fastening nut 11 abuts against the surface of the fixing block 8, and a washer 12 is provided between the fastening nut 11 and the fixing block 8. Therefore, even if the length of the fastening bolt 9 does not match the end of the upper and lower clamping connecting plate 4 and the thickness of the fixing block 8, that is, when the nut of the fastening bolt 9 cannot be tightly fitted to the surface of the fixing block 8, the fastening nut 11 can still be tightly fitted to the surface of the fixing block 8, thereby ensuring that the end of the fastening bolt 9 away from the end of the upper and lower clamping connecting plate 4 is tightly fitted to the surface of the fixing block 8.

[0032] It should be noted that an insulating layer 13 is provided between the upper clamp 3, the lower clamp 2 and the upper and lower clamp connecting plate 4 and the iron core 1. The upper and lower clamp connecting plate 4, which is not easy to fall off, can keep pressing the insulating layer 13 corresponding to the middle part of the iron core 1, while the upper clamp 3 and the lower clamp 2 can keep pressing the insulating layers 13 corresponding to the upper and lower ends of the iron core 1.

[0033] Preferably, both the lower clamp 2 and the upper clamp 3 are channel steel.

[0034] Preferably, the bottom end of the lower clamp 2 is bolted with a foot 5 to facilitate placing the transformer on the ground, and the upper clamp 3 is welded with a lifting lug 6 to facilitate hoisting the transformer.

[0035] In summary, this utility model, through the cooperation of the clamps, fixing blocks 8, upper and lower clamp connecting plates 4, and fastening bolts 9, achieves the following: when the lower clamps 2 and upper clamps 3 on the front and rear sides of the iron core 1 are tensioned by the tensioning screws 7, the middle part of the clamps undergoes bending deformation, causing separation from the ends of the upper and lower clamp connecting plates 4; this utility model then tightens the fastening bolts 9 onto the mounting parts 401 at the ends of the upper and lower clamp connecting plates 4, ensuring that the end of the fastening bolts 9 away from the ends of the upper and lower clamp connecting plates 4 is tightly fitted with the surface of the fixing block 8, thereby restoring the middle part of the clamps to its original position relative to the ends of the upper and lower clamp connecting plates 4. The upper clamp 3 is flush with the lower clamp 2 via the upper and lower clamp connecting plates 4, thus effectively preventing the ends of the upper and lower clamp connecting plates 4 from falling off the assembly slot 14; it also facilitates the upper clamp 3 to drive the lower clamp 2 through the upper and lower clamp connecting plates 4 during hoisting, forming a whole with high structural strength; in addition, after setting the fastening nut 11 on the fastening bolt 9, even if the length of the fastening bolt 9 does not match the end of the upper and lower clamp connecting plates 4 and the thickness of the fixing block 8, the fastening nut 11 can be tightened to make the fastening nut 11 fit tightly against the surface of the fixing block 8, thereby ensuring that the end of the fastening bolt 9 away from the end of the upper and lower clamp connecting plates 4 fits tightly against the surface of the fixing block 8.

[0036] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the utility model.

[0037] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0038] Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. The reference to "embodiment" herein means that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily indicate the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application. Although embodiments of this utility model have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A novel core clamp structure, characterized by: The utility model relates to a core (1) is provided with lower clamp piece (2) and upper clamp piece (3) on the both ends, the lower clamp piece (2) and upper clamp piece (3) are both symmetrically arranged in the front and back of core (1), and the symmetrically arranged lower clamp piece (2) edge between installation is tight screw rod (7), and the symmetrically arranged upper clamp piece (3) edge between installation is also tight screw rod (7); The lower clamp piece (2) and upper clamp piece (3) are provided with a plurality of upper and lower clamp piece connecting plates (4) between intervals, the upper and lower clamp piece connecting plate (4) both ends are provided with assembly part (401), the lower clamp piece (2) and upper clamp piece (3) are provided with assembly groove (14) on the corresponding assembly part (401); The lower clamp piece (2) and upper clamp piece (3) are provided with the fixed block (8) corresponding with assembly part (401), the fixed block (8) is used for fastening bolt (9) to pass through, the front end of fastening bolt (9) is connected with the threaded hole on assembly part (401) screw thread, and the end, away from assembly part (401) of fastening bolt (9), is with fixed block (8) surface abuts.

2. A novel core clamp structure according to claim 1, characterized in that: The assembly groove (14) is dovetail groove or T-shaped groove.

3. A novel core clamp structure according to claim 1, characterized in that: The fixed block (8) is provided with through hole (10) for fastening bolt (9) to pass through, and the diameter of through hole (10) is greater than the diameter of through hole (10).

4. A novel core clamp structure according to claim 1 or 3, characterized in that: The fastening bolt (9) is provided with fastening nut (11), and the fastening nut (11) abuts with the surface of fixed block (8).

5. A novel core clamp structure according to claim 4, characterized in that: The fastening nut (11) and fixed block (8) are provided with gasket (12) between.

6. A novel core clamp structure according to claim 1, characterized in that: The lower clamp piece (2) and upper clamp piece (3) are all channel steel.

7. A novel core clamp structure according to claim 1, characterized in that: The lower surface of lower clamp piece (2) is provided with footing (5) through bolt.

8. A novel core clamp structure according to claim 1, characterized in that: The upper clamp piece (3) is provided with lifting lug (6).

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