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CN-224216296-U - Mechanical static load test device for high-low voltage electric appliance shell structure

CN224216296UCN 224216296 UCN224216296 UCN 224216296UCN-224216296-U

Abstract

The utility model discloses a mechanical static load test device for a high-low voltage electric appliance shell structure, which comprises a bottom plate, wherein a rotary platform structure is arranged in the center of the bottom plate, first sliding rails are arranged on the bottom plate and positioned at the left side and the right side of the rotary platform structure, side supporting structures are arranged on the two sliding rails in a sliding mode, two third screw rods are rotatably arranged on the bottom plate through bearing seats, nuts are respectively arranged on the two screw rods and are respectively fixed with the two side supporting structures, two second reduction boxes are arranged on the bottom plate, output ends of the two reduction boxes are respectively connected with the two third screw rods, second motors are respectively arranged on the two reduction boxes, an output shaft of each second motor is connected with an input end of each second reduction box, and the device can apply static load force to a high-low voltage electric appliance shell test article at the left side and the right side and the upper side of the test article through arranging the side supporting structures and matching with a force applying structure, and monitors applied force values in real time, so that accurate force application is realized on the test article.

Inventors

  • ZHANG SHUANGRONG
  • ZHANG TIANFU
  • LU JUNYANG
  • LI HU
  • ZHAO YONGGANG

Assignees

  • 甘肃电器科学研究院

Dates

Publication Date
20260508
Application Date
20250715

Claims (10)

  1. 1. A mechanical static load test device of a high-low voltage electrical equipment shell structure comprises a bottom plate (1) and is characterized in that a rotary platform structure (2) is arranged in the center of the bottom plate (1), first sliding rails (3) are arranged on the bottom plate (1) and positioned on the left side and the right side of the rotary platform structure (2), side supporting structures (4) are slidably arranged on the two sliding rails, two third screw rods (5) are rotatably arranged on the bottom plate (1) through bearing seats, screw nuts are respectively arranged on the two screw rods and are respectively fixed with the two side supporting structures (4), two second reduction boxes (6) are respectively arranged on the bottom plate (1), output ends of the two reduction boxes are respectively connected with the two third screw rods (5), second motors (7) are respectively arranged on the two reduction boxes, output shafts of the second motors (7) are connected with input ends of the second reduction boxes (6), a top beam bracket (8) is arranged above the bottom plate (1), the bottom plate (1) is fixedly provided with the top beam bracket (8), the top beam (8) is slidably arranged on the top of the top beam bracket (8), the top beam (8) is fixedly arranged on the top of a lifting machine (9), the upper supporting structure (9) and the side supporting structure (4) are provided with a force application structure (11).
  2. 2. The mechanical static load test device of the high-low voltage electrical equipment shell structure is characterized in that the rotating platform structure (2) comprises a steering engine (201) and a plurality of universal balls (203) which are arranged on a bottom plate (1), a circular base (202) is arranged on an output shaft of the steering engine (201), the plurality of universal balls (203) are distributed in an annular array by taking the output shaft of the steering engine (201) as an axis, the plurality of universal balls (203) are all supported at the bottom of the base (202), a placing table (204) is fixed on the base (202), a first screw rod (205) is arranged below the placing table (204) through bearing seat rotation, two nuts (205) are arranged on the first screw rod (205), a sliding groove (206) and a strip-shaped through hole are formed in the placing table (204), two groups of sliding blocks are arranged inside the sliding groove (206), the placing table (204) are respectively fixed at the bottoms of the two U-shaped frames (207), the two nuts (204) on the first screw rod (205) penetrate through the two strip-shaped through holes, and the two quick clamping plates (208) are respectively arranged between the two strip-shaped clamping plates (208).
  3. 3. The mechanical static load test device of the high-low voltage electric appliance shell structure is characterized in that the side supporting structure (4) comprises a vertical support (401) which is slidably mounted on a first sliding rail (3), a nut on a third screw rod (5) is fixed at the bottom of the vertical support (401), a second sliding rail (402) which is vertically arranged is mounted on the vertical support (401), a first sliding table (403) is slidably mounted on the sliding rail, a force application structure (11) is mounted on the sliding table, a second screw rod (404) which is vertically arranged is rotatably mounted on the vertical support (401), a nut is arranged on the second screw rod (404), the nut is fixed with the first sliding table (403), a first reduction gearbox (405) is mounted on the vertical support (401), the output end of the reduction gearbox is connected with the second screw rod (404), a first motor (406) is mounted on the reduction gearbox, and the output shaft of the first motor (406) is connected with the input end of the first reduction gearbox (405).
  4. 4. The mechanical static load test device of the high-low voltage electric appliance shell structure is characterized in that the upper supporting structure (9) comprises a transverse support (901) which is slidably arranged on a gantry type support (8), the bottom end of an output screw of a screw rod lifter (10) is fixed with the top of the transverse support (901), a third sliding rail (902) which is horizontally arranged is arranged at the bottom of the transverse support (901), a second sliding table (903) is slidably arranged on the sliding rail, a force application structure (11) is arranged on the sliding table, a fourth screw rod (904) which is horizontally arranged is rotatably arranged on the transverse support (901), a screw nut is arranged on the fourth screw rod (904), the screw nut is fixed with the second sliding table (903), a third reduction gearbox (905) is arranged on the transverse support (901), the output end of the reduction gearbox is connected with the fourth screw rod (904), a third motor (906) is arranged on the reduction gearbox, and the output shaft of the third motor (906) is connected with the input end of the third reduction gearbox (905).
  5. 5. The mechanical static load test device for the high-low voltage electric appliance shell structure according to claim 1, wherein the force application structure (11) comprises an electric cylinder (1101), a force sensor (1102) is arranged on an output rod of the electric cylinder, and a pressing plate (1104) is arranged on the force sensor (1102) through a universal hinge (1103).
  6. 6. The mechanical static load test device for the high-low voltage electric appliance shell structure according to claim 1, wherein a control console (12) is arranged beside the bottom plate (1), and the rotary platform structure (2), the side supporting structure (4), the second motor (7), the upper supporting structure (9), the screw rod lifter (10) and the force application structure (11) are all connected and controlled by the control console (12).
  7. 7. The mechanical static load test device for the high-low voltage electric appliance shell structure according to claim 2, wherein threads of left and right halves on the first screw rod (205) are opposite in rotation direction, two nuts on the first screw rod (205) are respectively matched with two threads on the screw rod, and hand wheels are arranged at two ends of the first screw rod (205).
  8. 8. The mechanical static load test device for the high-low voltage electric appliance shell structure according to claim 2, wherein two clamping plates (209) on the rotary platform structure (2) are oppositely arranged.
  9. 9. A mechanical static load test device for a high-low voltage electric appliance shell structure according to claim 3 is characterized in that the force application structures (11) on the first sliding tables (403) of the two side supporting structures (4) are oppositely arranged.
  10. 10. The mechanical static load test device for the high-low voltage electric appliance shell structure according to claim 4, wherein the force application structure (11) on the second sliding table (903) of the upper supporting structure (9) is arranged vertically downwards.

Description

Mechanical static load test device for high-low voltage electric appliance shell structure Technical Field The utility model relates to the technical field of electrical equipment shell detection, in particular to a mechanical static load test device for a high-low voltage electric appliance shell structure. Background The high-low voltage complete electrical equipment is used as a core carrier of a modern power system, plays a key role in power generation, power transmission and transformation and terminal power distribution links, the performance of the high-low voltage complete electrical equipment directly influences the safety and energy utilization efficiency of a power grid, an electrical equipment shell is used as an important physical protection structure, the stable operation of internal electrical elements and the safety protection of operators are required to be ensured, the equipment shell must pass mechanical stress tolerance test according to standard specifications such as IEC 61439 and GB/T7251, the structural integrity of the equipment shell for resisting external forces such as dead load force and torque in the transportation, installation and operation processes is verified, and the traditional mechanical stress tolerance test device generally uses test methods of simulated loading such as weights, sand bags and the like, so that the problems of low precision, high labor intensity of test personnel, low efficiency, poor repeatability and the like exist. Therefore, we design a mechanical static load test device of a high-low voltage electric appliance shell structure for solving the problems. Disclosure of utility model The utility model aims to provide a mechanical static load test device for a high-low voltage electric appliance shell structure aiming at the defects of the prior art, so as to solve the problems in the prior art. The mechanical static load test device for the high-low voltage electric appliance shell structure comprises a bottom plate, wherein a rotary platform structure is arranged in the center of the bottom plate, first sliding rails are arranged on the bottom plate and are positioned on the left side and the right side of the rotary platform structure, side supporting structures are arranged on the two sliding rails in a sliding mode, two third screw rods are rotatably arranged on the bottom plate through bearing seats, nuts are respectively arranged on the two screw rods, the two screw rods are respectively fixed with the two side supporting structures, two second reduction boxes are arranged on the bottom plate, output ends of the two reduction boxes are respectively connected with the two third screw rods, a second motor is arranged on the two reduction boxes, an output shaft of the second motor is connected with the input end of the second reduction boxes, a gantry type support is arranged above the bottom plate, the bottom plate is fixed with the gantry type support, an upper supporting structure capable of sliding up and down is arranged on the gantry type support, a pair of screw rod lifters are arranged on top beams of the gantry type support, the output screw rods are fixed with the top supporting structures, and force applying structures are respectively arranged on the upper supporting structures and the side supporting structures. As the preferable technical scheme of the utility model, the rotary platform structure comprises a steering engine and a plurality of universal balls, wherein the steering engine and the universal balls are arranged on a bottom plate, a circular base is arranged on an output shaft of the steering engine, the universal balls are distributed in an annular array by taking the output shaft of the steering engine as an axis, the universal balls are all supported at the bottom of the base, a placing table is fixed on the base, a first screw rod is rotatably arranged below the placing table through a bearing seat, two nuts are arranged on the first screw rod, a chute and a strip-shaped through hole are formed in the placing table, two groups of sliding blocks are arranged in the chute, two U-shaped frames are arranged on the placing table, the two groups of sliding blocks in the chute are respectively fixed at the bottoms of the two U-shaped frames, the two nuts on the first screw rod penetrate through the strip-shaped through holes on the placing table and are respectively fixed at the bottoms of the two U-shaped frames, two quick clamps are respectively arranged on each U-shaped frame, and a clamping plate is fixed between output rods of the two quick clamps. As the preferable technical scheme of the utility model, the side supporting structure comprises a vertical support which is slidably arranged on a first sliding rail, a screw nut on a third screw rod is fixed at the bottom of the vertical support, a second sliding rail which is vertically arranged is arranged on the vertical support, a first sliding table is slidably arranged o