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CN-224216461-U - Cantilever load tolerance test device for sleeve

CN224216461UCN 224216461 UCN224216461 UCN 224216461UCN-224216461-U

Abstract

The utility model discloses a cantilever load tolerance test device of a sleeve, and relates to the technical field of transformer sleeve tolerance tests. Comprises a supporting table and supporting legs, wherein the top of the supporting table is provided with a through groove, the outer side of the through groove is provided with a fixing piece, after the transformer sleeve penetrates through the groove, the transformer sleeve is fixed through the fixing piece. The device is provided with the inhaul cable and the angle adjusting piece, in an initial state, the inhaul cable is overlapped with the central axis of the transformer bushing to be tested, so that the vertical tension test of the transformer bushing to be tested is realized, then the hydraulic cylinder is controlled by the controller to start, and the cantilever is driven to rotate around one side of the supporting table when the hydraulic cylinder stretches, so that different tension angles are formed between the inhaul cable and the transformer bushing to be tested, and when the inhaul cable is vertical to the transformer bushing to be tested, the horizontal tension test of the transformer bushing to be tested is realized.

Inventors

  • SU SHUHAI
  • WANG SHANSHAN
  • SU HANG

Assignees

  • 上海舒庆合电气科技有限公司

Dates

Publication Date
20260508
Application Date
20250430

Claims (6)

  1. 1. The cantilever load tolerance test device for the sleeve comprises a supporting table (1) and supporting legs (101) and is characterized in that a through groove is formed in the top of the supporting table (1), a fixing piece (3) is arranged outside the through groove, and after the transformer sleeve (2) penetrates through the through groove, the transformer sleeve (2) is fixed through the fixing piece (3); A guy cable (4) is arranged on the side surface of the supporting table (1), one end of the guy cable (4) is fixed with a to-be-measured point at the top of the transformer sleeve (2), the other end of the guy cable is connected with a bearing assembly, and a weight is placed on the bearing assembly; An angle adjusting piece is arranged between the inhaul cable (4) and the supporting table (1), and the tension angle between the inhaul cable (4) and the point to be measured at the top of the transformer sleeve (2) is adjusted through the angle adjusting piece.
  2. 2. The cantilever load tolerance test device of the sleeve pipe according to claim 1, wherein the fixing piece (3) comprises a side plate (301), vertical plates (304) are fixed on opposite sides of the side plate (301), at least one special-shaped groove is formed in the supporting table (1), a pressing block (302) is placed at the top of the supporting table (1), at least one special-shaped block (303) is fixed at the bottom end of the pressing block (302), and the special-shaped block (303) is matched with the special-shaped groove; a screw rod (305) is movably connected on the vertical plate (304) in a screwed manner, one end of the screw rod (305) is movably connected with the side face of the pressing block (302), and the other end of the screw rod is fixedly provided with a connector (306).
  3. 3. A cantilever load endurance test apparatus of a bushing according to claim 1, wherein the stay (4) and the angle adjusting member are located on opposite sides of the fixing member (3).
  4. 4. The cantilever load tolerance test device of the sleeve pipe according to claim 1, wherein the bearing assembly comprises a connecting block (601) fixed at the bottom end of the inhaul cable (4), a bearing disc (602) is arranged at the bottom of the connecting block (601), and a plurality of supporting ropes (603) in a circumferential array are fixed between the connecting block (601) and the bearing disc (602).
  5. 5. The cantilever load tolerance test device of the sleeve pipe according to claim 1, wherein the angle adjusting part comprises a cantilever (503) movably connected with the supporting table (1), a hydraulic cylinder (504) is arranged between the cantilever (503) and the supporting table (1), and two sides of the hydraulic cylinder (504) are respectively movably connected with the cantilever (503) and the supporting table (1) through connecting shafts; The top of cantilever (503) is fixed with U template (501), and U template (501) both sides all swing joint has pulley (502), supports cable (4) through pulley (502).
  6. 6. The cantilever load tolerance test device of the sleeve according to claim 1, wherein a tension meter (7) is arranged at the bottom of the inhaul cable (4).

Description

Cantilever load tolerance test device for sleeve Technical Field The utility model relates to the technical field of tolerance tests of transformer bushings, in particular to a cantilever load tolerance test device of a bushing. Background The transformer bushing is a main insulating device of the transformer, is used for leading a high-voltage wire inside the transformer to the outside of the oil tank, not only serves as a ground insulation of a lead, but also plays a role of fixing the lead, is one of important accessories of the transformer, and insulating oil or compressed gas is arranged in some transformer bushings, so that the sealing requirement is high. Cantilever load resistance tests are used to test the presence of oil or gas leakage by applying a set amount of tension to a bottom fixed transformer bushing. Chinese patent application publication No. CN207717532U discloses a cantilever load tolerance test apparatus for a transformer bushing, which can simplify the structure of the cantilever load tolerance test apparatus of the transformer bushing and improve test efficiency. The technical problem that the above-mentioned scheme had solved in the background art, but in practical application, above-mentioned scheme still has certain problem, for example, above-mentioned device is horizontal force to the tensile direction of transformer sleeve pipe, but in actual operation, the sleeve pipe probably receives the force of different directions, consequently only test horizontal direction, can't simulate multi-direction pulling force, leads to the test result inaccurate. Disclosure of utility model The utility model aims to provide a cantilever load tolerance test device of a sleeve, which aims to solve the problems in the background technology. The cantilever load tolerance test device for the sleeve comprises a supporting table and supporting legs, wherein a through groove is formed in the top of the supporting table, a fixing piece is arranged outside the through groove, and after the transformer sleeve penetrates through the through groove, the transformer sleeve is fixed through the fixing piece; The side surface of the supporting table is provided with a stay rope, one end of the stay rope is fixed with a to-be-measured point at the top of the transformer sleeve, the other end of the stay rope is connected with a bearing assembly, and a weight is placed on the bearing assembly; An angle adjusting piece is arranged between the inhaul cable and the supporting table, and the tension angle between the inhaul cable and the point to be tested at the top of the transformer sleeve is adjusted through the angle adjusting piece. Preferably, the fixing piece comprises a side plate, vertical plates are fixed on opposite sides of the side plate, at least one special-shaped groove is formed in the supporting table, a pressing block is placed at the top of the supporting table, at least one special-shaped block is fixed at the bottom end of the pressing block, and the special-shaped block is matched with the special-shaped groove; a screw rod is movably connected on the vertical plate in a threaded manner, one end of the screw rod is movably connected with the side surface of the pressing block, the other end is fixed with a connector. Preferably, the stay and the angle adjusting member are located on opposite sides of the fixing member. Preferably, the bearing assembly comprises a connecting block fixed at the bottom end of the inhaul cable, a bearing disc is arranged at the bottom of the connecting block, and a plurality of supporting ropes which are in a circumferential array are fixed between the connecting block and the bearing disc. Preferably, the angle adjusting piece comprises a cantilever which is movably connected with the supporting table, a hydraulic cylinder is arranged between the cantilever and the supporting table, and two sides of the hydraulic cylinder are respectively and movably connected with the cantilever and the supporting table through connecting shafts; the top of cantilever is fixed with U template, and the equal swing joint in U template both sides has the pulley, supports the cable through the pulley. Preferably, a tension meter is arranged at the bottom of the inhaul cable. Compared with the prior art, the utility model has the beneficial effects that: This sheathed tube cantilever load tolerates test device is provided with cable and angle adjusting part, under the initial state, the cable overlaps with the transformer bushing axis of waiting to test, realize waiting to test transformer bushing carries out vertical tensile test, then start through controller control pneumatic cylinder, drive the cantilever and rotate round supporting bench one side when the pneumatic cylinder extends, thereby make the cable and wait to test and form different pulling force angles between the transformer bushing of waiting to test, when the cable is perpendicular with waiting to test transformer b