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CN-122016204-A - Device and method for testing shock resistance of expansion joint hardware fitting

CN122016204ACN 122016204 ACN122016204 ACN 122016204ACN-122016204-A

Abstract

The invention provides an anti-seismic performance test device for an expansion joint fitting, which comprises a fixed table, a fixed part assembly, an actuating part assembly, a monitoring unit and a monitoring unit, wherein the fixed part assembly is fixed with the fixed table, one end of the fixed part assembly is fixed with one end of the expansion joint fitting to be tested, the actuating part assembly is fixed with the fixed table, the actuating part assembly is fixed with the other end of the expansion joint fitting to be tested, the actuating part assembly, the expansion joint fitting to be tested and the fixed part assembly are arranged in a collinear way, the monitoring unit is connected with the actuating part and is used for measuring and collecting stress and displacement data of the expansion joint fitting to be tested in a loading process, reciprocating motion of the expansion joint fitting under the action of an earthquake is simulated through the actuating part assembly, the stress and displacement data of the expansion joint fitting in the simulation process are detected through the monitoring unit, and the ultimate bearing capacity of the expansion joint fitting and the anti-seismic performance of the expansion joint fitting are calculated according to the obtained data.

Inventors

  • WANG HAIBO
  • LU ZHICHENG
  • ZHU ZHUBING
  • LIN SEN
  • XUE YAODONG

Assignees

  • 国网电力工程研究院有限公司

Dates

Publication Date
20260512
Application Date
20241111

Claims (10)

  1. 1. The utility model provides an telescopic joint gold utensil shock resistance test device which characterized in that includes: a fixed table (1); the fixed part assembly (2) is fixed with the fixed table (1), and one end of the fixed part assembly is fixed with one end of the expansion joint fitting (4) to be tested; The actuating part assembly (3) is fixed with the fixed table (1), and the driving end of the actuating part assembly is fixed with the other end of the expansion joint fitting (4) to be tested, wherein the actuating part assembly (3), the expansion joint fitting (4) to be tested and the fixed part assembly (2) are arranged in a collinear manner; the monitoring unit is connected with the actuating component (3) and is used for measuring and collecting data of stress and displacement of the tested telescopic joint fitting (4) in the loading process.
  2. 2. The telescopic joint fitting earthquake resistance testing device according to claim 1, wherein the tested telescopic joint fitting (4) comprises a fitting (4.1), a first pipe nut (4.2), a second pipe nut (4.3) and a pipe nut sliding support (4.4); one end of the first pipe nut (4.2) and one end of the second pipe nut (4.3) are oppositely arranged, the other end of the first pipe nut (4.2) is connected with the actuating part assembly (3), and the other end of the second pipe nut (4.3) is connected with the fixed part assembly (2); One end of the pipe nut sliding support (4) is fixed on the fixed table (1), and the other end of the pipe nut sliding support is sleeved outside the first pipe nut (4.2) and the second pipe nut (4.3) respectively, so that the first pipe nut (4.2) and the second pipe nut (4.3) are parallel to the table top of the fixed table (1); the two ends of the hardware fitting (4.1) are respectively connected to the first pipe nut (4.2) and the second pipe nut (4.3) to limit the distance between the first pipe nut (4.2) and the second pipe nut (4.3).
  3. 3. The telescopic joint fitting earthquake resistance testing device according to claim 2, wherein a plurality of fittings (4.1) are arranged at intervals, and the plurality of fittings (4.1) are symmetrically arranged on the first pipe nut (4.2) and the second pipe nut (4.3) along the axes of the first pipe nut (4.2) and the second pipe nut (4.3).
  4. 4. The telescopic joint fitting earthquake resistance testing device according to claim 2, wherein the pipe nut sliding support (4.4) comprises a base (4.4.1) and a sleeve ring (4.4.2); the base (4.4.1) is fixed on the fixed table (1), and the lantern ring (4.4.2) is fixed on the base (4.4.1); The two lantern rings (4.4.2) are symmetrically arranged, and the two lantern rings (4.4.2) are respectively sleeved on the outer sides of the first pipe nut (4.2) and the second pipe nut (4.3).
  5. 5. An apparatus for testing the shock resistance of an expansion joint fitting according to claim 2, wherein the actuator assembly (3) comprises a loading binaural hinge (3.1) and an actuator (3.2) which are connected to each other; One end of the actuator (3.2) is an actuating end, and the other end of the actuator is a fixed end; The fixed end of the actuator (3.2) is hinged to the side wall of the fixed table (1) through a hinge shaft, and the actuating end of the actuator (3.2) is connected with the first pipe nut (4.1) through the loading double-lug hinge support (3.1).
  6. 6. An apparatus for testing the shock resistance of an expansion joint fitting according to claim 5, wherein the actuating direction of the actuator (3.2) is parallel to the table top of the fixed table (1).
  7. 7. An anti-seismic performance test device for telescopic joint fittings according to claim 2, wherein the fixing part assembly (2) comprises a fixing counter-force seat (2.1) fixed on a fixing table; the second pipe nut (4.2) is fixedly connected to the side face of the fixed counterforce seat (2.1).
  8. 8. The device for testing the shock resistance of the telescopic joint fitting according to claim 1, wherein the monitoring part comprises a force sensor and a displacement meter; The force sensor is connected to the actuating part assembly (3) and is used for collecting acting force applied to the end part of the expansion joint fitting (4) to be tested; The displacement meter is connected to the actuating part assembly (3) and is used for collecting the displacement of the tube part of the telescopic joint fitting (4).
  9. 9. An anti-seismic performance test method for an expansion joint fitting, using the anti-seismic performance test device for an expansion joint fitting according to any one of claims 1 to 8, characterized in that the method comprises: The actuating part assembly (3) is in driving connection, so that one end of the expansion joint fitting (4) to be tested moves repeatedly; The monitoring unit is used for measuring and collecting the stress and displacement data of the tested telescopic joint fitting (4) in the repeated movement process; And obtaining the anti-seismic performance parameters of the tested expansion joint fitting (4) according to the acquired data of the stress and the displacement.
  10. 10. The method of claim 9, wherein the repeated horizontal movement takes three cycles as a period, and each period increases the distance of displacement according to the setting.

Description

Device and method for testing shock resistance of expansion joint hardware fitting Technical Field The invention relates to the field of hardware testing, in particular to an anti-seismic performance test method for an expansion joint hardware. Background Once the electrical equipment is invalid or destroyed in the earthquake disaster, the economic loss which is difficult to measure is caused, and the power interruption not only seriously affects the normal production life and earthquake relief work, but also possibly causes secondary disasters such as fire disaster and the like, thereby seriously threatening the life and property safety of people. The equipment of transformer substation/converter station passes through tubular busbar or soft busbar connection, to the female connecting circuit of hard tube, telescopic joint gold utensil play fixed and the female effect of stay tube, not only can guarantee that the hard tube busbar freely slides along the axial, and this kind of telescopic joint gold utensil has good damping power consumption effect moreover, and it can reduce the seismic response on pillar insulator equipment top in the female connecting circuit of hard tube. Under the action of earthquake, equipment, hardware fittings and pipe nuts in the hard pipe nut connecting loop can reciprocate along the hard pipe nut and swing in the horizontal direction. The telescopic joint fitting plays an important role in supporting and connecting energy consumption, and once the telescopic joint fitting is disconnected from the hard pipe nut, the connection is invalid, so that not only is the electric function affected, but also loop equipment is damaged. Therefore, the shock resistance of the expansion joint fitting is important, and the mechanical parameters such as ultimate bearing capacity and the like of the expansion joint fitting need to be researched. At present, how to design a corresponding test system and develop an ultimate bearing capacity test of an expansion joint fitting, and the obtaining of the mechanical parameters of the shock resistance becomes a difficulty in research. Disclosure of Invention In order to solve the problem of no shock resistance experiment of the related telescopic joint hardware fitting at present, the invention provides a device for testing shock resistance performance of the telescopic joint hardware fitting, which comprises the following components: a fixed table; The fixed part assembly is fixed with the fixed table, and one end of the fixed part assembly is fixed with one end of the expansion joint fitting to be tested; The actuating part assembly is fixed with the fixed table, and the driving end of the actuating part assembly is fixed with the other end of the tested telescopic joint fitting; the monitoring unit is connected with the actuating component and is used for measuring and collecting the data of the stress and displacement of the tested telescopic joint fitting in the loading process. Preferably, the tested expansion joint hardware fitting comprises hardware fitting, a first pipe nut, a second pipe nut and a pipe nut sliding support; One end of the first pipe nut and one end of the second pipe nut are oppositely arranged, the other end of the first pipe nut is connected with the actuating part assembly, and the other end of the second pipe nut is connected with the fixing part assembly; One end of the pipe nut sliding support is fixed on the fixed table, and the other end of the pipe nut sliding support is sleeved on the outer sides of the first pipe nut and the second pipe nut respectively, so that the first pipe nut and the second pipe nut are parallel to the table top of the fixed table; The two ends of the hardware fitting are respectively connected to the first pipe nut and the second pipe nut, and the distance between the first pipe nut and the second pipe nut is limited. Preferably, the hardware fittings are arranged at intervals, and the plurality of hardware fittings are symmetrically arranged on the first pipe nut and the second pipe nut along the axes of the first pipe nut and the second pipe nut. Preferably, the pipe nut sliding support comprises a base and a lantern ring; The base is fixed on the fixed table, and the lantern ring is fixed on the base; the lantern rings are symmetrically arranged in two, and the two lantern rings are respectively sleeved on the outer sides of the first pipe nut and the second pipe nut. The preferred actuator assembly comprises a load binaural hinge and an actuator connected to each other; one end of the actuator is an actuating end, and the other end of the actuator is a fixed end; The fixed end of the actuator is hinged to the side wall of the fixed table through a hinge shaft, and the actuating end of the actuator is connected with the first pipe nut through the loading double-lug hinge support. Preferably, the actuation direction of the actuator is parallel to the table top of the fixed table. Preferably, t