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Moving-follow constraint device

A restraining device and follow-up technology, which is applied in the testing of measuring devices, instruments, machines/structural components, etc., can solve problems such as untrue loading and incorrect support and reaction forces of testing machines, and achieve simple design, cost saving, The effect of easy installation

Active Publication Date: 2013-04-10
CHINA AIRPLANT STRENGTH RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This processing method may cause problems such as incorrect support and reaction force of the testing machine, untrue loading of parts near the constraints imposed by the testing machine, etc.

Method used

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Embodiment Construction

[0011] Below in conjunction with accompanying drawing, the present invention will be further described:

[0012] see figure 1 , which is a follow-up restraint device of the present invention, including a fixed base, a pulley, a connecting rod (with a fixed nut at one end), a nut and a single-ear joint, etc.

[0013] Such as figure 1 As shown, the one-ear joint 5 passes through the chute of the fixed base 1, and enters the top of the one-ear joint 5 and is 5mm away from the bottom of the fixed base 1 (just make sure that it does not touch the bottom). After a pulley 2 penetrates one end of the connecting rod (one with a fixed nut) 3 with a fixed nut, the whole enters the inside from the side of the fixed base 1 and passes through the single ear joint 5. Another pulley 2 passes through the other end of the connecting rod (with a fixed nut at one end) 3, and the position is adjusted so that the one-ear joint 5 is located in the middle of the two pulleys 2. Finally, the nut 4 p...

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Abstract

The invention relates to a moving-follow constraint device, in particular to a horizontal moving-follow constraint device applicable to an airplane structure test. The moving-follow constraint device comprises a fixing base seat, a pulley, a connecting rod and a connector. The pulley is installed in the fixing base seat through the connecting rod. One end of the connector penetrates through a groove in the fixing base seat and is connected with the connecting rod in the middle of the pulley, wherein the end of the connector is connected with a restrained piece. A test piece is connected with the moving-follow constraint device through a single-ear connector at the tail end. The connector is the single-ear connector. A fixing nut is arranged at one end of the connecting rod, and an adjustable nut is arranged at the other end of the connecting rod. The moving-follow constraint device solves the problem of how to carry out dynamic constraint to the test piece. Not matter what states a test machine is in, necessary constraints can be provided, additional constraints can not be produced, and the process that the test machine exerts constraints and the adjacent parts bear really is not affected. At the same time, the moving-follow constraint device is concise in design and simple and convenient to install, and having certain generality.

Description

technical field [0001] The invention relates to a follow-up restraint device, in particular to a horizontal follow-up restraint device applied to aircraft structure tests. Background technique [0002] In the static / fatigue test of aircraft structure, the constraints of the test machine are statically determinate constraints, including vertical constraints, heading constraints and lateral constraints. There are two common ways to set constraints: the first is to set constraints through a position-controlled actuator, and the second is to fix the test piece to the column or the ground through a series of hard connections. These two constraints are "dead constraints", that is, no matter what state the test piece is in during the test, no matter whether it is pitch, roll or yaw, the positions of the fixed ends of these two constraints are always the same. One end will vary with possible deformation of the testing machine. [0003] Taking the test machine in a stable pitch sta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M99/00
Inventor 尹伟郭冬梅陈康朱亚辉何月洲郑龙刚
Owner CHINA AIRPLANT STRENGTH RES INST
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