Hydraulic vibration active isolation platform

A technology for isolating platform and hydraulic vibration, applied in non-rotating vibration suppression, machine platform/bracket, supporting machine, etc., can solve the problems of low-frequency and large-amplitude vibration isolation, etc., achieve high positioning accuracy, eliminate hinge gap, and high motion accuracy Effect

Inactive Publication Date: 2011-08-03
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the problems existing in the prior art, the present invention proposes a hydraulic vibration active isolation platform, which provides a six-degree-of-freedom wide-range vibration isolation capability for technical application fields suc

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Embodiment Construction

[0042] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0043] A hydraulic vibration active isolation platform proposed by the present invention, such as figure 1 and figure 2 As shown, it includes an upper platform 1, a lower platform 2, a two-degree-of-freedom Hooke hinge 3, a three-degree-of-freedom Hooke hinge 4, and a hydraulic active lever 5.

[0044] The lower platform 2 is preferably a plane herringbone structure to reduce weight, such as image 3 As shown, a lower base A201, a lower base B202, and a lower base C203 are symmetrically arranged on the edge of the lower platform 2, and the lower base A201, the lower base B202, and the lower base C203 are connected to the lower platform by bolts. 2 The upper and lower bases A201 are provided with centering holes a2011 and centering holes b2012, the lower base B202 is provided with centering holes c2021 and centering holes d2022, and the lower base C203 is provided ...

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Abstract

The invention discloses a hydraulic vibration active isolation platform which comprises an upper platform, a lower platform, a two-degree-of-freedom hook joint, a three-degree-of-freedom hook joint and a hydraulic active actuating rod. According to the invention, since the two-degree-of-freedom hook joint and the three-degree-of-freedom hook joint are designed by adopting a pre-tightening anti-backlash technology, the hinge gap is eliminated and the motion accuracy of the hydraulic vibration active isolation platform is much higher. Based on the isolation platform, an active isolation platform with six-degree-of-freedom large-range vibration isolation capability is provided for the application field of vehicle mounted or onboard optical observation and laser aiming and other technologies, so that the disadvantage that the low-frequency large amplitude vibration is hardly isolated by the traditional isolation platform is overcome.

Description

technical field [0001] The invention belongs to the field of precision machinery, and in particular relates to a hydraulic vibration active isolation platform. Background technique [0002] As the precision of vehicle-mounted and marine optical equipment and laser aiming equipment is getting higher and higher, external vibration signals are gradually becoming one of the important factors affecting the accuracy of these equipment. Due to the complex working environment of vehicles and ships, the payloads such as optical and laser equipment installed on them are always in vibration, which makes the vibration of vehicles or ships during driving, especially in the case of long-distance observation. A small angular deviation caused will result in a missed target. Therefore, it is often necessary to install vibration isolation devices between these optical and laser equipment and vehicles to improve the observation accuracy of optical equipment and the aiming accuracy of laser eq...

Claims

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Application Information

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IPC IPC(8): F16F15/02F16M11/00
Inventor 崔龙王海强黄海张泽杨天光
Owner BEIHANG UNIV
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