Three-freedom degree mechanical type vibration environmental test platform

An environmental test and shaking table technology, applied in vibration testing, testing of machine/structural components, measuring devices, etc., can solve problems such as small working space, collision between rigid brackets and guide rails, weak bearing capacity, etc. High precision and compact effect

Inactive Publication Date: 2009-05-27
ZHEJIANG UNIV OF TECH
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Problems solved by technology

Its shortcoming is that the static platform and the dynamic platform are connected by three pairs of moving branch chains distributed on three vertical planes perpendicular to each other, so a single branch bears a large force in a certain direction, resulting in a relatively weak carrying capacity. And each set of rigid brackets is directly connected to the slider through a ball joint, and the slider is sleeved on the guide rail. When moving, the rigid bracket and the guide rail are prone to collision, resulting in a small working space

Method used

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  • Three-freedom degree mechanical type vibration environmental test platform
  • Three-freedom degree mechanical type vibration environmental test platform

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Embodiment Construction

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] refer to figure 1 with 2 : The three-degree-of-freedom vibration environment test platform is composed of a base 1, a shaking table 5 and a first kinematic branch 2, a second kinematic branch 3 and a third kinematic branch 4 hinged between them, wherein the first The motion branch chain 2 and the second motion branch chain 3 are respectively composed of the first servo motor 6 and the second servo motor 15, the first guide rod 21 and the second guide rod 14, the first ball screw nut pair 22 and the second ball screw Lever nut pair 13, first moving slider 20 and second moving slider 12, first connecting rod 18 and second connecting rod 10, first fixed length rod 19 and second fixed length rod 11, first moving connecting rod 17 and the second moving connecting rod 16 form. The first servo motor 6 and the second servo motor 15,...

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Abstract

The invention discloses a three-freedom mechanical vibration environment testing platform, which relates to the vibration environment testing field. A pedestal 1 is connected with a vibration platform 5 through movement branched chains 2, 3 and 4, wherein the movement branched chains 2 and 3 are composed of servo motors 6 and 15, guide rods 21 and 14, ball screw nut pairs 22 and 13, moving blocks 20 and 12, link rods 18 and 10, fixed length rods 19 and 11, moving link rods 17 and 16 respectively; the movement branched chain 4 is composed of a servo motor 9, a ball screw nut pairs 8 and a fixed length rod 7. the testing platform, driven by the servo motors 6, 15 and 9, is capable of realizing vibration of the vibration platform 5 in any direction of space. The invention has the advantages of application of parallel mechanism to perform vibration-resistant strength and vibration-resistant stability test or simulate other vibration environment to electromechanical components, better bearing capability, excellent machining and assembly technology, compact structure, high precision, large rigidity and relatively large movement space.

Description

technical field [0001] The invention relates to the field of vibration environment tests, in particular to a kinematic mechanical vibration environment test platform. The invention belongs to test equipment for carrying out vibration-resistant strength and vibration-resistant stability tests on electromechanical components or simulating other vibration environments. Background technique [0002] Parallel robots have the advantages of compact structure, high rigidity, and high precision. They have attracted the attention of scholars at home and abroad, and have been widely used in the fields of machining, aerospace, and bionics. Applying the parallel mechanism to the field of vibration test gives full play to the advantages of the parallel mechanism, and also provides a new test platform for the field of vibration test. [0003] Chinese Patent Publication No. CN 1614376A, published on May 11, 2005, the name of the invention is a three-degree-of-freedom mechanical vibration e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M7/06
Inventor 李研彪计时鸣都明宇高建设
Owner ZHEJIANG UNIV OF TECH
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