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Multifunction metal rubber flexible connecting piece

A technology of flexible connectors and metal rubber, applied in the direction of springs, etc., can solve the problems of reducing structural strength, amplifying the low-frequency vibration amplitude of equipment, reducing the reliability of sensitive equipment, and being unable to effectively release thermally induced structural deformation and vibration, etc., to achieve various connection methods , the inflection point of nonlinear stiffness is obvious, and the effect of buffering thermal stress shock

Inactive Publication Date: 2007-01-03
郑钢铁 +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sensitive equipment is interconnected and restrained with other parts of the spacecraft structure, and thermal stress cannot be effectively released, resulting in thermally induced structural deformation and vibration of the structure
The flexible connection between sensitive equipment and the spacecraft can effectively release the thermal stress and reduce the thermal deformation of the sensitive equipment. The connection has the disadvantages of reducing the structural strength to amplify the low-frequency vibration amplitude of the equipment and reducing the reliability of sensitive equipment during the launch process

Method used

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  • Multifunction metal rubber flexible connecting piece
  • Multifunction metal rubber flexible connecting piece
  • Multifunction metal rubber flexible connecting piece

Examples

Experimental program
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Effect test

specific Embodiment approach 1

[0007] Specific implementation mode 1: This implementation mode is a multifunctional metal rubber flexible connector, refer to figure 2 , which is composed of a flexible pad 1, a pressure ring 2, a restraint shell 3, a connecting rod 4 and a base 5, the restraint shell 3 is cylindrical, and the flexible pad 1 and the pressure ring 2 are all arranged inside the cylindrical restraint shell 3 , the flexible pad 1 includes an upper flexible pad 1-1 and a lower flexible pad 1-2, the upper flexible pad 1-1 and the lower flexible pad 1-2 are respectively arranged at the upper and lower ends of the pressure ring 2, and the flexible pad 1 is composed of It is prepared from metal rubber. Metal rubber is a grid-like structure formed by winding, superimposing and extruding several spirally coiled metal wires. The upper flexible pad 1-1 and the lower flexible pad 1-2 in this embodiment are selected Metal wires of the same material and diameter are prepared with the same winding density to...

specific Embodiment approach 2

[0012] Specific embodiment two: The end of the constraining shell 3 described in this embodiment is provided with the piercing hole 3-1 of the connecting rod 4, and there is a gap between the connecting rod 4 and the piercing hole 3-1. figure 2 . Since the connecting rod 4 of the connecting piece described in this embodiment does not use a rigid limit in the radial direction, the axes of the connecting joints on both sides of the flexible connecting piece are allowed to form a certain angle, that is, to achieve a certain swing between the base and the equipment, so The nonlinear metal-rubber flexible connector described in this embodiment can simultaneously provide a flexible connection in a bending direction to the base and the device.

specific Embodiment approach 3

[0013] Specific implementation mode three: combination image 3 This specific embodiment will be described. The difference between this embodiment and the previous embodiment is that a connecting rod guide hole 5-2 is provided on the inner surface of the base 5, and a piercing hole 3-1 of the connecting rod 4 is provided at the end of the constraining shell 3. The inner diameter of the hole 3-1 is the same as the outer diameter of the connecting rod 4, that is to say, there is no gap between the passing hole 3-1 and the connecting rod 4. Since the radial direction of the connecting rod 4 is rigidly limited, only the relative movement of the connecting rod in the axial direction is allowed, thus limiting the swing between the base and the equipment connected at both ends of the flexible connector. Therefore, the connection described in this embodiment The parts can resist shear and bending deformation, and are suitable for connections that require large lateral stiffness, and ...

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Abstract

There is disclosed a multi-functional metal-rubber flexible connecting piece, which has a cylindrical restrained casing with a flexible pad and a hold-down ring inside. A connecting-rod passes longitudinally through the centre of the hold-down ring and is jointed firmly with the hold-down ring. One end of the connecting-rod extends from one end of the restrained casing and the other end of the restrained casing is fixed on the base.

Description

technical field [0001] The invention relates to a connecting piece for connecting a spacecraft with sensitive equipment on it. Background technique [0002] Sensitive equipment on spacecraft (such as space telescopes, meteorological detection equipment, communication antennas, etc.) requires spacecraft to have high pointing accuracy and pointing stability. Thermally induced structural deformation of spacecraft will greatly reduce the pointing accuracy and stability of sensitive equipment under working conditions, affect the working performance of equipment, cause imaging jitter, target observation area deviation, communication signal loss and other failures. The thermal deformation in the spacecraft structure mainly comes from two aspects: 1) the structural thermal stress caused by the difference between the ambient temperature on the orbit and the installation environment on the ground; Impact stress and thermal cyclic stress. Sensitive equipment is interconnected and res...

Claims

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Application Information

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IPC IPC(8): F16F1/371
Inventor 郑钢铁梁鲁王天昊白绍竣王树岭
Owner 郑钢铁
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