An Umbrella Stiffness Adjustment Mechanism Based on Leaf Springs

Abstract

The invention discloses an umbrella type rigidity adjusting mechanism based on leaf springs. The umbrella type rigidity adjusting mechanism based on the leaf springs comprises a middle body, the leaf springs, a base plate, lower joints and upper joints; the leaf springs are placed in the circumferential direction of the middle body; the upper ends of the leaf springs are fixedly connected with the upper joints; the lower ends of the leaf springs are fixedly connected with the lower joints; the upper joints are connected with upper supporting seats; the lower joints are connected with lower supporting seats; under the restrictions of the upper supporting seats and the lower supporting seats, the upper joints and the lower joints rotate with the deformation of the leaf springs so as to form hinging connection; the lower supporting seats are fixed onto the base plate; and a plurality of connecting ports used for being connected with other elastic bodies are formed in the middle body. The umbrella type rigidity adjusting mechanism based on the leaf springs can realize an ultra-lower frequency suspension function under a ground gravity environment, has the advantages of small volume, small size, strong rigidity adjusting capacity and so on, can realize microgravity environment test , provides technical support for the test of a space device and achieves great application values and development prospects in simulation and test equipment of the vibration environment.

Description

technical field [0001] The invention relates to an umbrella-type stiffness adjustment structure, in particular to an umbrella-type stiffness adjustment mechanism based on a leaf spring. Background technique [0002] In order to simulate the test requirements of space vehicles in zero gravity or microgravity, many devices need to be suspended on the ground. One of the requirements for the suspension device is to be able to provide extremely low suspension frequencies. At present, most microgravity environments Suspension test by means of flexible ropes or low stiffness springs, the advantage of this test is that it is simple to implement, but its disadvantages are also obvious: the lowest frequency that can be achieved is limited and often requires a large vertical space in the test . Contents of the invention [0003] In view of the defects in the prior art, the purpose of the present invention is to provide an umbrella-type stiffness adjustment mechanism based on leaf sp...

AI Technical Summary

Problems solved by technology

[0002] In order to simulate the test requirements of space vehicles in zero gravity or microgravity, many devices need to be suspended on the ground. One of the requirements for the suspension device is to be able to provide extremely low suspension frequencies. At present, most microgravity environments Suspension test by means of flexible ropes or low stiffness springs, the advantage of this test is that it is simple to implement, but its disadvantages are also obvious: the lowest frequency that can be achieved is limited and often requires a large vertical space in the test

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