CN-224224976-U - Main transformer core transferring clamp

CN224224976UCN 224224976 UCN224224976 UCN 224224976UCN-224224976-U

Abstract

The utility model discloses a main transformer core transferring clamp which comprises a transferring trolley plate for loading a main transformer core, wherein a first clamp assembly for clamping and fixing the position of a lower iron core clamp on the transferring trolley plate is arranged on the surface of the transferring trolley plate, and a second clamp assembly for clamping an upper iron core clamp to prevent the main transformer core from tilting is also arranged on the surface of the transferring trolley plate. The first clamp assembly directly limits the horizontal displacement of the iron core on the transfer trolley board by fixing the lower iron core clamp, and the second clamp assembly fixes the upper iron core clamp to form the constraint on the height of the iron core so as to prevent the toppling risk caused by high gravity center. The problem of sliding when the vehicle is started, stopped or turned on the uneven road surface in the background art is solved by adapting to most types of transfer vehicle plates, and the problem that the main transformer core is easy to displace and damage due to the fact that the main transformer core is fixed infirm is further solved.

Inventors

FAN LIMING
LI XIANZHI
Xiong Zonglian
YANG HENG

Assignees

湖南省国创电力有限公司

Dates

Publication Date: 20260512
Application Date: 20250612

Claims (5)

1. The main transformer core transferring clamp is characterized by comprising a transferring trolley plate for loading a main transformer core, wherein a first clamp assembly for clamping and fixing the position of a lower core clamp on the transferring trolley plate is arranged on the surface of the transferring trolley plate, and a second clamp assembly for clamping an upper core clamp to prevent the main transformer core from tilting is also arranged on the surface of the transferring trolley plate; The first clamp assembly comprises an end fixing assembly for fixing the end of the lower iron core clamp and a side fixing assembly for fixing the side of the lower iron core clamp; The end fixing assembly comprises first support plates symmetrically arranged on two sides above the transfer trolley plate, first clamping plates are respectively distributed on one sides, close to each other, of the first support plates, a first hydraulic cylinder is arranged on one side, away from the first clamping plates, of the first support plates, one side, close to the first support plates, of the first hydraulic cylinder penetrates through the first support plates through an output shaft of the first hydraulic cylinder to be connected with the first clamping plates, and the first hydraulic cylinder is used for pushing the first clamping plates to move towards one side of the other first clamping plates; The side fixing assembly comprises second supporting plates which are symmetrically arranged on two sides above the transfer trolley plate, the distribution direction of the second supporting plates which are symmetrically arranged is perpendicular to the distribution direction of the first supporting plates which are symmetrically arranged, second clamping plates are respectively distributed on one sides, close to each other, of the second supporting plates, a second hydraulic cylinder is arranged on one side, away from the second clamping plates, of each second supporting plate, one side, close to each second supporting plate, of each second hydraulic cylinder penetrates through the second supporting plates through an output shaft of each second hydraulic cylinder to be connected with the corresponding second clamping plate, and each second hydraulic cylinder is used for pushing one side, close to the corresponding second clamping plate, of the corresponding second clamping plate to move towards the other second clamping plate; A first pressure sensor is arranged on one side, away from the first supporting plate, of each first clamping plate, and a second pressure sensor is arranged on one side, away from the second supporting plate, of each second clamping plate; the upper side of each second supporting plate is concavely provided with a sliding groove, the second clamp assembly comprises a plurality of sliding blocks which are arranged in the sliding grooves in a sliding manner, and further comprises third clamping plates which are arranged above each second supporting plate, a plurality of sliding sleeves are sleeved on each third clamping plate in a sliding manner, and the outer wall of each sliding sleeve is in one-to-one corresponding rotary connection with the sliding blocks on the second supporting plates below the third clamping plates through telescopic supporting pieces which are in rotary connection; Each sliding sleeve is symmetrically distributed on the upper side and the lower side of the sliding sleeve, a through hole for a bolt to pass through is formed in each connecting block in a penetrating mode, when two third clamping plates are located on two sides of the side portion of the upper iron core clamp, the connecting blocks of the sliding sleeve on one third clamping plate are connected with the connecting blocks of the sliding sleeve on the other third clamping plate in a one-to-one correspondence mode through the through holes of the two connecting blocks in a penetrating mode through screws, and therefore the upper iron core clamp is clamped and fixed through the two third clamping plates.
2. The main transformer core transferring clamp according to claim 1, wherein the telescopic supporting piece comprises a first sliding rod which is rotatably connected to the sliding block and is of a hollow structure, a second sliding rod is slidably arranged in the first sliding rod, and one end of the second sliding rod, which is away from the first sliding rod, is rotatably connected with the outer wall of the sliding sleeve; The telescopic support comprises a first sliding rod, a second sliding rod, a plurality of second fixing holes, a telescopic support piece and a plug, wherein the first fixing holes penetrating through two sides of the first sliding rod are formed in the first sliding rod in a penetrating mode, the second fixing holes are formed in the second sliding rod in a penetrating mode and distributed along the extending direction of the second sliding rod, the extending direction of each second fixing hole is in the same direction as the extending direction of the first fixing hole, and the plug is detachably inserted into the first fixing hole and the second fixing hole.
3. The primary transformer core transfer fixture of claim 2, wherein the second securing aperture has a larger aperture than the first securing aperture.
4. The primary transformer core transfer fixture of claim 1, wherein each of the sliding sleeves is provided with an anti-slip layer adjacent an inner wall of the third clamping plate.
5. The main transformer core transport fixture of claim 1, wherein the side of each first clamping plate contacting the lower core fixture, the side of each second clamping plate contacting the lower core fixture, and the side of each third clamping plate contacting the upper core fixture are respectively provided with protective layers.

Description

Main transformer core transferring clamp Technical Field The utility model relates to the technical field of transformer production, in particular to a main transformer core transferring clamp. Background The large power transformer (main transformer) is a core device of a power system, and an iron core of the large power transformer is used as a magnetic circuit main body and a key bearing structure of the transformer, is formed by stacking high-permeability silicon steel sheets, and has the characteristics of large volume, heavy weight, precise structure, easy damage of a surface insulating coating, relatively weak overall rigidity (relative to the size and the weight of the large power transformer), and the like. In the links of production and manufacture of transformers, factory tests, field installation, overhaul and maintenance, and the like, the iron cores often need to be transported among workshops, test stations, warehouses or installation sites. Ensuring the stability, safety and integrity of the core during transportation is important, and any knocks, deformations or insulation damages can seriously affect the performance and operational reliability of the transformer. At present, when the main transformer core is transported, common fixing modes mainly comprise direct binding of steel wire ropes or slings, simple brackets or square supports and general hoisting clamps. The prior art and the method have the advantages that the iron core is easy to displace, slide and shake relative to the clamp or the support in the transferring process (particularly in the process of moving on a non-flat road, starting and stopping equipment or turning), and even the whole iron core can be inclined in severe cases. Therefore, there is a need in the art to develop a transfer fixture specifically designed for the structural features of the main transformer core. The clamp can firmly and reliably hold or restrain the iron core main body, and effectively prevent the iron core from displacement, sliding or toppling in any direction in the whole transportation process, so as to solve the problems. The main transformer core comprises, but is not limited to, a plurality of core columns vertically distributed at intervals, an upper core clamp positioned above the core columns and used for mutually connecting the upper ends of the plurality of core columns, and a lower core clamp positioned below the core columns and used for mutually connecting the lower ends of the plurality of core columns. The upper iron core clamp and the lower iron core clamp have the same structure and are both in strip-shaped structures, the extension side is a side part, and the extension end is an end part. Transfer decks include, but are not limited to, full trailer decks, semitrailer decks, flatbed semitrailers, low flatbed semitrailers, and barrier transport vehicles. Disclosure of utility model The utility model mainly aims to provide a main transformer core transferring clamp, which aims to solve the technical problem that in the prior art, the main transformer core is not firmly fixed, so that the translocation of the main transformer core is damaged. In order to achieve the above purpose, the main transformer core transferring clamp provided by the utility model comprises a transferring truck plate for loading the main transformer core, wherein a first clamp assembly for clamping and fixing the position of a lower iron core clamp on the transferring truck plate is arranged on the surface of the transferring truck plate, and a second clamp assembly for clamping an upper iron core clamp to prevent the main transformer core from tilting is also arranged on the surface of the transferring truck plate. Preferably, the first clamp assembly includes an end fixing assembly for fixing an end of the lower core clamp, and a side fixing assembly for fixing a side of the lower core clamp. Preferably, the end fixing assembly comprises first supporting plates symmetrically arranged on two sides above the transfer trolley plate, first clamping plates are respectively distributed on one sides, close to each other, of the first supporting plates, a first hydraulic cylinder is arranged on one side, deviating from the first clamping plates, of the first supporting plates, one side, close to the first supporting plates, of the first hydraulic cylinder penetrates through the first supporting plates through an output shaft of the first hydraulic cylinder to be connected with the first clamping plates, and the first hydraulic cylinder is used for pushing the first clamping plates to move towards one side of another first clamping plate. Preferably, the lateral part fixed subassembly is including the second backup pad of symmetry setting in transfer sweep top both sides, and the direction of distribution of the second backup pad of symmetry setting is mutually perpendicular with the direction of distribution of the first backup pad of symmetry setting, and the s