Variable-structure rope-traction parallel robot for wind tunnel test

Abstract

The invention discloses a variable-structure rope-traction parallel robot for a wind tunnel test, relating to a robot. The variable-structure rope-traction parallel robot comprises a stand, an aircraft model, a traction rope, a movable universal hinge point, a movable hinge point driving assembly, a traction rope driving assembly, and a fixed universal hinge point, wherein the aircraft model is drawn by the traction rope to realize motion of six degrees of freedom; the movable hinge point driving assembly is provided with a movable hinge point support, a ball screw, a guide rail, a support, a motor and a coupler; the traction rope driving assembly is provided with a rope-traction support, a ball screw, a guide rail, a screw bearing support, a motor and a coupler; and the fixed universal hinge point and the movable universal hinge point are respectively provided with a deep-groove slit pulley, a radial bearing, a shaft, a locking nut, a vertical support and a horizontal support. The variable-structure rope-traction parallel robot has small interferences to an air flow field, is diverse in test items, large in working space and high in response speed, has the advantage of overcoming the defects of destruction to the air flow field, single test item, small model motion space and low response speed of the traditional hard type wind tunnel support manner, and is simple in structure and easy to manufacture and maintain.

Description

Technical field [0001] The invention relates to a robot, in particular to a variable structure rope traction parallel robot used for wind tunnel tests. Background technique [0002] Existing wind tunnel test support mechanisms mostly use rigid support structures. The inherent properties of rigid support determine that it has the disadvantage of large interference to the air flow field, making it difficult to ensure the reliability and accuracy of wind tunnel test results. Since the traction rope is much smaller in diameter than the rigidly supported bracket, the wind tunnel test using rope traction parallel robot support has little interference to the air flow field. In terms of test capability, ordinary hard supports are difficult to complete the wind tunnel free flight test. Using rope-towed parallel robot technology, a set of supports can be used to complete the wind tunnel's static and dynamic derivatives while realizing the wind tunnel free flight test project. At the same...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a low interference to the air flow field, a variety of test items, a large working space, and a fast response speed, which can overcome the traditional hard wind tunnel support method in destroying the air flow field, single experimental items, small model movement space, and fast response. The disadvantage of slow speed; and a simple structure, easy to manufacture, assemble and maintain a variable structure rope traction parallel robot for wind tunnel tests

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