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CN-121983414-A - Transformer core and winding relative displacement decoupling structure

CN121983414ACN 121983414 ACN121983414 ACN 121983414ACN-121983414-A

Abstract

The invention relates to the technical field of transformer iron core and winding installation, in particular to a transformer iron core and winding relative displacement decoupling structure which comprises an iron core assembly frame, a high-voltage winding coil and two multi-dimensional buffer support assemblies, wherein the iron core assembly frame is installed between the two multi-dimensional buffer support assemblies, the multi-dimensional buffer support assemblies comprise a support frame, a longitudinal buffer frame, a transverse buffer frame and an installation frame, and the support frame is connected with the longitudinal buffer frame, the longitudinal buffer frame is connected with the transverse buffer frame and the transverse buffer frame is connected with the installation frame through multi-section elastic buffer assemblies. The invention can decompose and buffer the impact received in the three-dimensional space by mutually combining the multi-section elastic buffer components at different positions, and simultaneously, the multi-section elastic buffer components perform elastic deformation buffer corresponding to one section under the impact of different degrees.

Inventors

  • Yin Futao
  • QIN YONGJIE
  • ZHU WEI

Assignees

  • 环欧电气有限公司

Dates

Publication Date
20260505
Application Date
20260327

Claims (9)

  1. 1. A transformer core and winding relative displacement decoupling structure, comprising: an iron core assembly frame (1); the high-voltage winding coils (2), the high-voltage winding coils (2) are arranged in plurality, the iron core assembly frame (1) is arranged on the inner side of the high-voltage winding coils (2) in a penetrating mode, and the inner side of the high-voltage winding coils (2) is connected with the iron core assembly frame (1) through the insulating buffer assembly (3); still include multidimensional buffering supporting component (4), multidimensional buffering supporting component (4) are provided with two, iron core group frame (1) are installed between two multidimensional buffering supporting component (4), multidimensional buffering supporting component (4) are including braced frame (41), vertical buffering frame (42), horizontal buffering frame (43) and installing frame (44), between braced frame (41) and vertical buffering frame (42), between vertical buffering frame (42) and horizontal buffering frame (43) and all be connected through multistage elasticity buffering component (45) between horizontal buffering frame (43) and installing frame (44), multistage elasticity buffering component (45) can multisection elasticity stretch out and draw back, each section elasticity of multistage elasticity buffering component (45) is different, installing frame (44) are in the same place with iron core group frame (1), multistage elasticity buffering component (45) that both ends and braced frame (41) and vertical buffering frame (42) are connected vertically set up, multistage elasticity buffering component (45) that both ends and vertical buffering frame (42) and horizontal buffering frame (43) are connected vertically set up, both ends and horizontal elasticity component (45) are connected with horizontal buffering frame (44).
  2. 2. The transformer core and winding relative displacement decoupling structure of claim 1, wherein said insulating buffer assembly (3) comprises: the inner insulating cylinder (31), the said inner insulating cylinder (31) is cup jointed and installed in the outside of the iron core group frame (1); the inner insulating cylinder (31) is coaxially arranged on the inner side of the outer insulating cylinder (32), and the high-voltage winding coil (2) is arranged on the outer side of the outer insulating cylinder (32); the insulation rubber micro-buffering column (33) is further included, and two ends of the insulation rubber micro-buffering column (33) are respectively connected with the outer wall of the inner insulation cylinder (31) and the inner wall of the outer insulation cylinder (32).
  3. 3. The transformer core and winding relative displacement decoupling structure of claim 2, wherein a plurality of insulating rubber micro-buffer columns (33) are arranged, and the plurality of insulating rubber micro-buffer columns (33) are uniformly distributed between the inner insulating cylinder (31) and the outer insulating cylinder (32); The axis of the insulating rubber micro buffer column (33) is perpendicularly intersected with the axis of the inner insulating cylinder (31).
  4. 4. The transformer core and winding relative displacement decoupling structure of claim 1, wherein said multi-segment spring buffer assembly (45) comprises: The edge rod (451) is positioned between the supporting frame (41) and the longitudinal buffer frame (42), the edge rod (451) and the supporting frame (41) are fixed, the edge rod (451) and the upper surface of the transverse buffer frame (43) are fixed between the longitudinal buffer frame (42) and the transverse buffer frame (43), and the edge rod (451) and the transverse buffer frame (43) are fixed between the transverse buffer frame (43) and the mounting frame (44); The buffer end (452) is sleeved on the outer surface of the prismatic rod (451) in a sliding manner, the buffer end (452) positioned between the supporting frame (41) and the longitudinal buffer frame (42) is fixed with the longitudinal buffer frame (42), the buffer end (452) positioned between the longitudinal buffer frame (42) and the transverse buffer frame (43) is fixed with the bottom surface of the longitudinal buffer frame (42), and the buffer end (452) positioned between the transverse buffer frame (43) and the mounting frame (44) is fixed with the mounting frame (44); the primary pressure sleeve (453) is arranged on one side of the buffer end head (452), and the primary pressure sleeve (453) is in sliding sleeve connection with the outer surface of the edge rod (451); The primary stress sleeve (454) is in sliding connection with the primary pressure sleeve (453), the primary stress sleeve (454) is in sliding sleeve connection with the outer surface of the prismatic rod (451), the primary buffer spring (4512) is arranged on the primary stress sleeve (454), the other end of the primary buffer spring (4512) is connected with the primary pressure sleeve (453), and the primary stress sleeve (454) is positioned at the inner side of the primary buffer spring (4512); The secondary pressure sleeve (456) is sleeved on the outer surface of the prismatic rod (451) in a sliding manner, and the secondary pressure sleeve (456) is positioned at one end, far away from the buffering end (452), of the primary stress sleeve (454); The secondary stress sleeve (457) is sleeved on the outer surface of the prismatic rod (451) in a sliding mode, the secondary stress sleeve (457) is located on one side, far away from the buffer end (452), of the primary stress sleeve (454), a secondary buffer spring (458) is arranged at one end, close to the primary stress sleeve (454), of the secondary stress sleeve (457), the other end of the secondary buffer spring (458) is connected with a secondary pressure sleeve (456), the secondary stress sleeve (457) is located on the inner side of the secondary buffer spring (458), and the secondary stress sleeve (457) is inserted on the inner side of the secondary pressure sleeve (456) in a sliding mode; A tertiary pressure sleeve (459), the tertiary pressure sleeve (459) being slidably received over the outer surface of the rib (451); The fixed end cylinder (4510), fixed end cylinder (4510) is fixedly sleeved on the outer surface of the prismatic rod (451), fixed end cylinder (4510) is located at one side of the second-stage stress sleeve (457) far away from the first-stage stress sleeve (454), a third-stage buffer spring (4511) is installed at one end of the fixed end cylinder (4510) close to the second-stage stress sleeve (457), the other end of the third-stage buffer spring (4511) is connected with the fixed end cylinder (4510) and located at the inner side of the third-stage buffer spring (4511), and the fixed end cylinder (4510) is in sliding connection with one side of the third-stage pressure sleeve (459); The hydraulic pressure control device further comprises force transmission assemblies (455), wherein the force transmission assemblies (455) are two, and the two force transmission assemblies (455) are used for respectively connecting a primary stress sleeve (454) and a secondary pressure sleeve (456) with a secondary stress sleeve (457) and a tertiary pressure sleeve (459).
  5. 5. The transformer core and winding relative displacement decoupling structure as claimed in claim 4, wherein said force transfer assembly (455) comprises: A fixing collar (4551), a fixing collar (4551) positioned between the supporting frame (41) and the longitudinal buffer frame (42) and the supporting frame (41) are fixed, the fixing collar (4551) positioned between the longitudinal buffer frame (42) and the transverse buffer frame (43) and the upper surface of the transverse buffer frame (43) are fixed, the fixing collar (4551) positioned between the transverse buffer frame (43) and the mounting frame (44) and the transverse buffer frame (43) are fixed, and the two ends of the primary stress sleeve (454), the two ends of the secondary pressure sleeve (456) and the three-stage pressure sleeve (459) are respectively positioned inside the corresponding fixing collar (4551); The clamping block (4552) is positioned on the inner ring side of the fixed sleeve ring (4551), the clamping block (4552) is elastically connected with the inner ring surface of the fixed sleeve ring (4551), oblique angles are chamfered on two sides of one end of the clamping block (4552) close to the axis of the prismatic rod (451), an outer ring surface of one end of the secondary pressure sleeve (456) close to the primary stress sleeve (454) and an outer ring surface of one end of the tertiary pressure sleeve (459) close to the secondary stress sleeve (457) are respectively provided with a ring groove (4554), and the clamping block (4552) is slidably inserted into the inner side of the adjacent ring groove (4554); Still include push rod (4553), the quantity of push rod (4553) equals the quantity of fixture block (4552), push rod (4553) and fixture block (4552) position one-to-one, primary pressure sleeve (453) and secondary pressure sleeve (456) are fixed with adjacent push rod (4553) respectively, in primary pressure sleeve (453) and secondary pressure sleeve (456) drive push rod (4553) that are connected and remove, drive push rod (4553) to exert thrust to corresponding fixture block (4552), push rod (4553) exert thrust to fixture block (4552) oblique angle, promote fixture block (4552) to keep away from fixed lantern ring (4551) axis and corresponding annular (4554) and break away from.
  6. 6. The transformer core and winding relative displacement decoupling structure of claim 5, wherein the inner wall of the secondary pressure sleeve (456) and the inner wall of the tertiary pressure sleeve (459) are respectively rotatably inserted with a double-gear column (4555), the outer surface of the prismatic rod (451) is provided with a groove (4556), one end of the double-gear column (4555) is positioned at the inner side of the groove (4556), a fixed rack (4557) is fixedly inserted in the groove (4556), one side of the double-gear column (4555) is meshed with the fixed rack (4557), and one side of each double-gear column (4555) far away from the fixed rack (4557) is meshed with a linkage rack (4558); The primary stress sleeve (454) and the secondary stress sleeve (457) are respectively fixed with adjacent linkage racks (4558).
  7. 7. The transformer core and winding relative displacement decoupling structure as claimed in claim 6, wherein the linkage rack (4558) is parallel to the fixed rack (4557), and the linkage rack (4558) is parallel to the axis of the corresponding prismatic bar (451); the axis of the double gear column (4555) is perpendicularly intersected with the axis of the corresponding prismatic rod (451); Openings corresponding to the double-gear columns (4555) are formed in one end, close to the primary stress sleeve (454), of the secondary stress sleeve (457) and one end, close to the tertiary pressure sleeve (459), of the fixed end cylinder (4510).
  8. 8. The transformer core and winding relative displacement decoupling structure of claim 5, wherein the secondary pressure sleeve (456) has an inner diameter that is compatible with the outer diameter of the primary pressure sleeve (454), and the tertiary pressure sleeve (459) has an inner diameter that is compatible with the outer diameter of the secondary pressure sleeve (457).
  9. 9. The transformer core and winding relative displacement decoupling structure of claim 4, wherein said primary (4512), secondary (458) and tertiary (4511) snubber springs have progressively increasing elasticity.

Description

Transformer core and winding relative displacement decoupling structure Technical Field The invention relates to the technical field of transformer iron core and winding installation, in particular to a transformer iron core and winding relative displacement decoupling structure. Background During the operation of the transformer, the transformer is influenced by factors such as electromagnetic force, mechanical vibration, thermal expansion, external impact and the like, and the relative displacement is easy to generate between the iron core and the winding. This displacement can lead to winding deformation, insulation wear, partial discharge and even short circuit faults, which seriously affect the safe and stable operation of the transformer. The displacement decoupling structure is mainly applied to the fields of machinery, electronics and the like, and the mutual influence among different parts is reduced by designing an isolation or elastic compensation mechanism. The displacement decoupling structure is arranged between the iron core and the winding, so that the influence generated during deformation can be reduced. In the prior art, the elasticity of the displacement decoupling structure is generally in a linear state, the variation force applied by mechanical vibration, thermal expansion and external impact on the structure is larger, the displacement effect between the structures is larger, the linearly arranged elastic components cannot effectively cope with different impact ranges, and the compensation and buffering of the displacement directions between the structures are single in the prior art. Disclosure of Invention In order to buffer displacement impact in multiple directions and multiple forces, the invention provides a transformer iron core and winding relative displacement decoupling structure. The invention provides a transformer iron core and winding relative displacement decoupling structure, which adopts the following technical scheme that: and (5) an iron core assembly frame. The high-voltage winding coils are provided with a plurality of iron core assembly frames, the iron core assembly frames penetrate through the inner sides of the high-voltage winding coils, and the inner sides of the high-voltage winding coils are connected with the iron core assembly frames through insulating buffer assemblies. The multi-dimensional buffer support assembly comprises a supporting frame, a longitudinal buffer frame, a transverse buffer frame and an installation frame, wherein the supporting frame is connected with the longitudinal buffer frame, the longitudinal buffer frame is connected with the transverse buffer frame, the transverse buffer frame is connected with the installation frame through a plurality of elastic buffer assemblies, the elastic expansion of the plurality of elastic buffer assemblies can be carried out in multiple sections, each section of elasticity of the elastic buffer assemblies is different, the installation frame is installed with the iron core assembly frame, the plurality of elastic buffer assemblies are vertically arranged, two ends of the elastic buffer assemblies are connected with the supporting frame and the longitudinal buffer frame, the plurality of elastic buffer assemblies are longitudinally arranged, and the two ends of the elastic buffer assemblies are connected with the longitudinal buffer frame and the transverse buffer frame. Optionally, the insulating buffer assembly includes: The inner insulating cylinder is sleeved and mounted on the outer side of the iron core assembly frame. The inner insulating cylinder is coaxially arranged on the inner side of the outer insulating cylinder, and the high-voltage winding coil is arranged on the outer side of the outer insulating cylinder. The insulation rubber micro buffer column is characterized by further comprising an insulation rubber micro buffer column, wherein two ends of the insulation rubber micro buffer column are respectively connected with the outer wall of the inner insulation cylinder and the inner wall of the outer insulation cylinder. Optionally, the insulating rubber micro-buffering post is provided with a plurality of, and a plurality of insulating rubber micro-buffering posts evenly distributed are between inner insulating cylinder and outer insulating cylinder. The axis of the insulating rubber micro buffer column is perpendicularly intersected with the axis of the inner insulating cylinder. Optionally, the multi-segment resilient cushioning component includes: the edge rods are positioned between the supporting frames and the longitudinal buffer frames and fixed with the supporting frames, the edge rods positioned between the longitudinal buffer frames and the transverse buffer frames are fixed with the upper surfaces of the transverse buffer frames, and the edge rods positioned between the transverse buffer frames and the mounting frames are fixed with the transverse buffer frames. The buffer