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Airplane rod piece calibration test restraining device and method

A restraint device and rod technology, applied in the field of aircraft rod calibration test restraint devices, can solve the problems of inaccurate loading of aircraft rods, damage to aircraft rods and test equipment, etc., and achieve convenient connection, weakening offset and lifting. The effect of accuracy

Pending Publication Date: 2022-07-29
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the invention is to aim at the technical problem that during the calibration test of the aircraft rod, there is a coaxial deviation between the aircraft rod and each test equipment, which leads to inaccurate loading of the aircraft rod and, in serious cases, damage to the aircraft rod and the test equipment , providing a restraint device and method for aircraft bar calibration test

Method used

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  • Airplane rod piece calibration test restraining device and method
  • Airplane rod piece calibration test restraining device and method
  • Airplane rod piece calibration test restraining device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] like figure 1 , figure 2 and Figure 4 As shown in the figure, an aircraft rod calibration test restraint device in this embodiment includes a test bench 1, and a first fixed seat 2, a second fixed seat 3 and a third fixed seat 4 are arranged on the test bench 1. The first fixed seat 2 is used to connect the test piece 11, the second fixed seat 3 is provided with a limit sleeve 5, the third fixed seat 4 is connected with a hydraulic actuator 7, the limit sleeve is 5 is provided with a connecting rod 6 that can move along the axis of the limiting sleeve 5. One end of the connecting rod 6 is used to connect with the test piece 11. After the test piece 11 is installed, the connecting rod 6 coincides with the axis of the test piece 11. The other end of the connecting rod 6 is used to connect with the telescopic end of the hydraulic actuator 7 . After the hydraulic actuator 7 is installed, the connecting rod 6 and the axis of the hydraulic actuator 7 coincide.

[0038] Whe...

Embodiment 2

[0044] like figure 1 and figure 2 As shown, in this embodiment, the difference from Embodiment 1 is that the test bench 1 is provided with a connection structure for installing the first fixing base 2, and the number of the connection structures is several, and a number of the The connection structures are arranged along the length direction of the test bench 1 , the first fixing base 2 can be connected with the test bench 1 through one connecting structure, and the plurality of connecting structures are arranged to make the position of the first fixing base 2 on the test bench 1 It can be adjusted to adjust the distance between the first fixed base 2 and the second fixed base 3, so that the test pieces 11 of different lengths can be installed between the first fixed base 2 and the second fixed base 3, so as to facilitate the test of different length specifications Part 11 of the calibration test.

[0045] Specifically, the connection structure includes two universal holes,...

Embodiment 3

[0047] like figure 1 , figure 2 and image 3 As shown, in this embodiment, the difference from Embodiment 1 is that a fourth fixing base 8 is provided between the second fixing base 3 and the third fixing base 4, and the fourth fixing base 8 is used to fix the The casing of the hydraulic actuator 7 is described, and the hydraulic actuator 7 may shake during the process of applying the load. It is more stable, reduces the offset of the load in the direction of the vertical test bench 1, reduces the energy loss, and also ensures the safety of the hydraulic actuator 7, the connecting rod 6 and other components during the test process to prevent accidental damage to the test components.

[0048] Specifically, the fourth fixing base 8 is provided with a groove 81 that is adapted to the shape of the casing of the hydraulic actuator 7 , and the fourth fixing base 8 is detachably provided with a groove 81 to close the groove 81 . The pressing plate 82 is provided with connecting s...

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PUM

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Abstract

The invention relates to the technical field of aircraft rod piece tests, in particular to an aircraft rod piece calibration test restraining device and method.The device comprises a test bed, a first fixing base, a second fixing base and a third fixing base are arranged on the test bed, the first fixing base is used for being connected with a test piece, and the second fixing base is used for being connected with a third fixing base; a limiting sleeve is arranged on the second fixing seat, a hydraulic actuator is connected to the third fixing seat, a connecting rod capable of moving in the axis direction of the limiting sleeve is arranged in the limiting sleeve, one end of the connecting rod is used for being connected with a test piece, and the other end of the connecting rod is used for being connected with the telescopic end of the hydraulic actuator. Due to the limiting effect of the limiting sleeve on the connecting rod, the coaxiality of the test piece and the hydraulic actuator is ensured, the deviation of the vertical test table board in the load transmission process is weakened, and the accuracy of a test result is improved.

Description

technical field [0001] The invention relates to the technical field of aircraft rod testing, in particular to an aircraft rod calibration test restraint device and method. Background technique [0002] Rods such as the retractable rod of the front main lift door and the engine tie rod are important load-bearing components in the aircraft structure, and are one of the important items for the overall calibration of the aircraft structure. Ensure that the strain-load relationship equation obtained from the test can accurately reflect the load size, direction and load transfer path of the structure under various conditions. The connection method between the two ends of the rod and the loading equipment should be consistent with the installation method on the aircraft, and the calibration load should be applied along the axial direction of the rod, including tensile load and pressure load. [0003] Since the rod calibration test involves tensile and compressive loads, the loadin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64F5/60
CPCB64F5/60
Inventor 李小欢贾琪李锐高鹏
Owner CHENGDU AIRCRAFT INDUSTRY GROUP