A double-link slider type three-way adjustable stiffness vibration-damping platform without angular displacement

Abstract

The invention discloses a double-connecting rod slide block type three-way rigidity-adjustable no-angular displacement damping platform. The damping platform consists of a carrier connecting substrate, a connecting rod slide block module, a photoelectric turret connecting plate and a three-way rigidity-adjustable damper set. The damping platform is mainly suitable for a photoelectric turret type whose damper set is only externally positioned at the top due to limitation from internal space volume. Through a combination effect of multiple slide connecting rod modules, the photoelectric turret connecting plate and the carrier connecting substrate cannot be angularly displaced in a harmful direction, so that the photoelectric turret is not disturbed by the external; and then, a selected object generates the phenomenon of image shifting and imaging rotation by an optical sensor to guarantee clear and stable imaging frames. The damping platform has the characteristics of simple structure, less needed space, low weight, excellent maintainability and convenience to upgrade.

Description

technical field [0001] The invention belongs to the technical field of vibration reduction, and mainly relates to a non-angular displacement vibration reduction platform, specifically a double-link slider type three-direction adjustable stiffness non-angular displacement vibration reduction platform, which is especially suitable for photoelectric devices sensitive to angular displacement. system. Background technique [0002] Civilian photoelectric systems play an important role in the fields of environmental monitoring and protection, search and rescue, anti-smuggling and anti-terrorism, and are mounted on different transport carriers. Compared with static use environments, they can double the use efficiency: "Stand higher" , "seeing farther" and "recognizing more clearly", the accuracy and clarity of the collected and output video images are an important basis for the operator to make judgments and decisions. [0003] External disturbances have always been the key to affe...

AI Technical Summary

Problems solved by technology

[0009] (1) No angular displacement constraint ability is poor, it mainly relies on a single connecting rod and a single cylinder pair to realize the constraint of the degree of freedom of angular displacement movement, the thin structure seriously restricts the comprehensive constraint ability of the device, especially when the load of the photoelectric system is relatively high When it is large, the latter will still have a certain angular displacement movement, and it often becomes stuck due to excessive deformation during actual use;

[0010] (2) It takes up a lot of space. In order to eliminate the "pendulum effect", the above-mentioned device must adopt four symmetrical and evenly distributed branches. Therefore, the device cannot be used when the installation position of the photoelectric system is limited;

[0012] (4) Poor maintainability. The branch mechanism group used to eliminate angular displacement and the spring used to attenuate disturbance are cross-linked during structural installation and cannot be disassembled independently. After any unit is disassembled, it needs to be accurately assembled and adjusted. Only in this way can it be restored to the ideal working state, and it may be inconvenient to use;

[0013] (5) The vibration damping effect is difficult to adjust. The device uses up to 12 independent springs to achieve linear attenuation in three directions. During combined use, it is very easy to be affected by spring installation, fixed position, individual performance differences and poor coupling relationship. Factors bring unsatisfactory attenuation effect; at the same time, the process of back-calculating spring performance according to the expected attenuation effect is also extremely cumbersome, which brings great inconvenience to use

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