Iron core side face clamping structure

Abstract

The utility model discloses an iron core side face clamping structure, which relates to the technical field of transformers and comprises an iron core, a clamping piece is arranged on the outer side of the iron core, a plurality of through holes are arranged on two sides of the clamping piece, a first drawstring shaft is arranged in the through hole on one side of the clamping piece, a second drawstring shaft is arranged in the through hole on the other side of the clamping piece, and the first drawstring shaft is connected with the second drawstring shaft. A weftless tape is arranged between the first drawstring shaft and the second drawstring shaft, a wood cushion block is placed at the position, attached to the weftless tape, of the inner side of the clamping piece, and the weftless tape is tightly attached to the iron core and the wood cushion block. Stability and safety in the transportation process are achieved, the weftless tape is adopted to tighten the side face clamping pieces and the U-shaped round steel with the threads, the iron core displacement risk is reduced, meanwhile, the production process is simplified, and cost is reduced. The improvements are not only suitable for upgrading and replacing the existing equipment, but also enhance the flexibility and adaptability of the design, and effectively improve the overall reliability and economic benefits of the transformer.

Description

TECHNICAL FIELD

[0001] The utility model relates to transformer technical field, it is a kind of iron core side face clamping structure. BACKGROUND

[0002] After large power transformer is produced, it needs to reach destination after transportation, in the transportation process, due to the restriction of transport equipment, transformer is generally placed along the length direction along transport car body, so the iron core side face is easily impacted by acceleration during transportation.If not effectively respond, yoke sheet can be displaced, seriously affect the operation of transformer.

[0003] At present, large transformer in the power transformer industry mostly uses the method of side support beam to fasten and protect side face, resists iron core yoke sheet, and ensures that it can withstand transportation impact force.Some manufacturers choose to use pull screw to tighten yoke sheet, and use the method of increasing friction to prevent impact.

[0004] Generally, export products need sea transportation, and the requirement for side impact resistance is more stringent, basically all require side beam support structure to ensure the reliability of transformer transportation. SUMMARY

[0005] The utility model discloses a kind of iron core side face clamping structure, to solve the problem raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A kind of iron core side face clamping structure, including iron core, the outside of the iron core is provided with clamp piece, multiple through holes are provided on the two sides of the clamp piece, first pull belt shaft is provided in the through hole of one side of the clamp piece, second pull belt shaft is provided in the through hole of the other side of the clamp piece, no-waste tape is provided between the first pull belt shaft and second pull belt shaft, wood pad is placed in the position that the inside of the clamp piece is attached to no-waste tape, no-waste tape is closely attached to iron core and wood pad.

[0008] Preferably, the first pull belt shaft and the second pull belt shaft are arranged on the inside of the clamp piece, and the wood pad and the no-waste tape are arranged on the inside of the clamp piece.

[0009] Preferably, the clamp piece includes a first clamp plate, a second clamp plate and a fixed plate, and the first clamp plate is fixedly connected to the second clamp plate by the fixed plate.

[0010] Preferably, the lower part of the first clamp plate and the second clamp plate is provided with a U-shaped threaded round steel, and the upper part of the first clamp plate and the second clamp plate is provided with a fixing piece.

[0011] Preferably, the two ends of the weftless tape are fixedly connected to the first and second pull tape shafts respectively, a nut is externally threadedly connected to the second pull tape shaft, a disc spring is arranged below the nut, and an anti-loosening washer is arranged between the nut and the disc spring.

[0012] Preferably, a flat washer is arranged between the nut and the clamp.

[0013] Preferably, the iron core comprises a three-phase three-column iron core and a three-phase five-column iron core.

[0014] Preferably, a supporting iron is fixedly connected to the clamp of the three-phase five-column iron core.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] 1. The stability and safety of the large power transformer during transportation are improved, and the displacement of the iron core caused by impact is reduced, thereby ensuring the normal operation of the transformer.

[0017] 2. By using the weftless tape to tighten the side clamps, the welding amount during the manufacturing and installation of the supporting member is reduced, the production cost is reduced, and the processing steps are simplified.

[0018] 3. By using the U-shaped tape threaded round steel arranged inside the clamp, only a through hole needs to be punched on the clamp to complete the installation, without additional welding operation, thereby further saving the material cost and labor cost.

[0019] 4. The structures of the three-phase three-column and three-phase five-column iron cores are improved, which is not only suitable for replacing the original supporting member structure, but also can adjust the position of the pull tape shaft according to actual needs, thereby increasing the flexibility and adaptability of the design.

[0020] 5. The improvement of the utility model on the prior art significantly improves the reliability of the large power transformer during transportation, reduces the manufacturing and maintenance costs, and has obvious economic benefits and technical advantages.

[0021] In summary, by optimizing the iron core supporting structure of the large power transformer, the weftless tape is used to tighten the side clamps, and the U-shaped tape threaded round steel is designed, the stability and safety during transportation are significantly improved, the iron core displacement risk is reduced, the production process is simplified, and the cost is reduced. These improvements not only apply to the upgrading and replacement of existing equipment, but also enhance the flexibility and adaptability of the design, effectively improve the overall reliability and economic benefits of the transformer. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a top view structural schematic diagram of the utility model;

[0023] Figure 2 It is a structural schematic view of the utility model;

[0024] Figure 3 It is a structural schematic view of the utility model five-column pull screw;

[0025] Figure 4 It is Figure 1 The partial enlarged view A in it.

[0026] In the figure: 1 iron core, 101 three-phase three-column iron core, 102 three-phase five-column iron core, 2 clamp, 21 first clamping plate, 22 second clamping plate, 23 fixed plate, 3 through hole, 4 first pull belt shaft, 5 second pull belt shaft, 6 weftless tape, 7 wooden cushion block, 8 U-shaped tape threaded round steel, 9 fixed part, 10 nut, 11 disc spring, 12 anti-loose washer, 13 flat washer, 14 supporting iron. Specific implementation

[0027] The technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0028] Please refer to Figure 1 , Figure 2 , Figure 3 Figure 4 An iron core side clamping structure, comprising an iron core 1, a clamp 2 is arranged on the outer side of the iron core 1, a plurality of through holes 3 are arranged on the two sides of the clamp 2, a first pull belt shaft 4 is arranged in the through hole 3 on one side of the clamp 2, a second pull belt shaft 5 is arranged in the through hole 3 on the other side of the clamp 2, a weftless tape 6 is arranged between the first pull belt shaft 4 and the second pull belt shaft 5, a wooden cushion block 7 is arranged at the position where the clamp 2 is attached to the weftless tape 6, and the weftless tape 6 is tightly attached to the iron core 1 and the wooden cushion block 7.

[0029] The first pull belt shaft 4 and the second pull belt shaft 5 are arranged on the inner side of the clamp 2, and the wooden cushion block 7 and the weftless tape 6 are arranged on the inner side of the clamp 2.

[0030] The clamp 2 comprises a first clamping plate 21, a second clamping plate 22 and a fixed plate 23. The first clamping plate 21 is fixedly connected with the second clamping plate 22 through the fixed plate 23.

[0031] A U-shaped tape threaded round steel 8 is arranged on the lower part of the first clamping plate 21 and the second clamping plate 22, and a fixed part 9 is arranged on the upper part of the first clamping plate 21 and the second clamping plate 22.

[0032] Two ends of the weftless tape 6 are fixedly connected to the first and second pull tape shafts 4 and 5 respectively, the second pull tape shaft 5 is externally threadedly connected with a nut 10, a disc spring 11 is arranged below the nut 10, and an anti-loosening washer 12 is arranged between the nut 10 and the disc spring 11.

[0033] A flat washer 13 is arranged between the nut 10 and the clamp 2.

[0034] The iron core 1 comprises a three-phase three-column iron core 101 and a three-phase five-column iron core 102.

[0035] The clamp 2 of the three-phase five-column iron core 102 is fixedly connected with a support iron 14.

[0036] In this embodiment, the structure comprises the clamp 2 arranged outside the iron core 1, a plurality of through holes 3 are arranged on both sides of the clamp 2, a first pull tape shaft 4 is arranged in one side through hole 3, and a second pull tape shaft 5 is arranged in the other side through hole 3, the two shafts are connected by the weftless tape 6, and a wooden cushion block 7 is placed inside the clamp 2 to increase the friction force, so as to ensure that the weftless tape 6 is tightly attached to the iron core 1 and the wooden cushion block 7, thereby improving the stability and safety of the transformer during transportation, reducing the displacement of the iron core 1 caused by impact, and reducing the welding amount during the manufacturing and installation of the support member by using the weftless tape 7 to tighten the side clamps, thereby reducing the production cost and simplifying the processing steps. By threadedly connecting the nut 10 outside the second pull tape shaft 5, and matching the disc spring 11, the anti-loosening washer 12 and the flat washer 13, the loosening of the weftless tape can be effectively prevented, and the use of the weftless tape 6 to tighten the side clamps 2 reduces the welding amount during the manufacturing and installation of the support member, thereby reducing the production cost and simplifying the processing steps.

[0037] In addition, the U-shaped belt threaded round steel is arranged on the clamp 2, so that only a through hole needs to be punched on the clamp 2 to complete the installation, without the need for additional welding operations, thereby further saving material costs and labor costs. These improvements significantly improve the reliability of large power transformers during transportation, while reducing manufacturing and maintenance costs, and have obvious economic benefits and technical advantages.

[0038] In this embodiment, the structure is suitable for the three-phase three-column iron core 101 and the three-phase five-column iron core 102, and can be flexibly adjusted according to the actual situation, thereby showing high design flexibility and adaptability. The support iron 14 is welded on the clamp 2 of the three-phase five-column iron core 102, so that the pull tape shaft is extended outward, thereby avoiding the lengthening of the clamp and saving costs. By reducing the welding workload and material costs, the production process flow is simplified, while the reliability and economy of large power transformers during transportation are significantly improved.

[0039] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A core side clamping structure, comprising a core (1), characterized in that: A clamp (2) is provided on the outside of the iron core (1). Multiple through holes (3) are provided on both sides of the clamp (2). A first pull belt shaft (4) is provided in the through hole (3) on one side of the clamp (2). A second pull belt shaft (5) is provided in the through hole (3) on the other side of the clamp (2). A non-woven belt (6) is provided between the first pull belt shaft (4) and the second pull belt shaft (5). A wooden pad (7) is placed on the inside of the clamp (2) where it is in contact with the non-woven belt (6). The non-woven belt (6) is in close contact with the iron core (1) and the wooden pad (7). The clamp (2) includes a first clamping plate (21), a second clamping plate (22), and a fixing plate (23). The first clamping plate (21) is fixedly connected to the second clamping plate (22) through the fixing plate (23). The lower part of the first clamping plate (21) and the second clamping plate (22) is provided with U-shaped threaded round steel (8), and the upper part of the first clamping plate (21) and the second clamping plate (22) is provided with fastener (9); by using U-shaped threaded round steel to set on the clamping member (2), the clamping member (2) only needs to be drilled to complete the installation, without the need for additional welding work; The two ends of the non-woven belt (6) are respectively fixedly connected to the first pull belt shaft (4) and the second pull belt shaft (5). The second pull belt shaft (5) is externally threaded with a nut (10). A disc spring (11) is provided below the nut (10). An anti-loosening washer (12) is provided between the nut (10) and the disc spring (11). A flat washer (13) is provided between the nut (10) and the clamp (2) to prevent the non-woven belt (6) from loosening and reduce the amount of welding during the manufacturing and installation of the support.

2. The iron core side clamping structure according to claim 1, characterized in that: The first pull belt shaft (4) and the second pull belt shaft (5) are located inside the clamp (2), and the wooden pad block (7) and the non-woven belt (6) are located inside the clamp (2).

3. The iron core side clamping structure according to claim 1, characterized in that: The iron core (1) includes a three-phase three-limb iron core (101) and a three-phase five-limb iron core (102).

4. The iron core side clamping structure according to claim 3, characterized in that: The clamp (2) of the three-phase five-column iron core (102) is fixedly connected with a support iron (14).

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