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A High Stiffness Locking Hinge with Constant Pressure Preload

A constant-pressure pre-tightening and high-rigidity technology, applied in the direction of the pivot connection, can solve the problems of uneven thermal deformation, small pre-tightening force, and poor structural symmetry, and achieve the advantages of compact overall structure, long service life, and weight reduction. Effect

Active Publication Date: 2019-01-25
BEIJING INST OF SPACECRAFT SYST ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cam-type locking hinge has simple composition and good specific stiffness, but the pre-tightening force after locking is small, and the structural symmetry is poor, and the thermal deformation is uneven in the space environment

Method used

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  • A High Stiffness Locking Hinge with Constant Pressure Preload
  • A High Stiffness Locking Hinge with Constant Pressure Preload
  • A High Stiffness Locking Hinge with Constant Pressure Preload

Examples

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Embodiment Construction

[0027] In order to make the solution of the present invention clearer, the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments:

[0028] Such as figure 1 As shown, a constant-pressure preloaded high-stiffness locking hinge includes a first hinge 1, a second hinge 2, and a rotating shaft 3; the first hinge 1 and the second hinge 2 are respectively fixedly connected to a rod, Both the first hinge 1 and the second hinge 2 are provided with holes for installing the rotating shaft 3, the first hinge 1 and the second hinge 2 are hinged through the rotating shaft 3, and are used to drive the two rods to fold or unfold. The two hinges 2 are also provided with a constant pressure pretensioning device 24 for constant hinge pressing force.

[0029] Such as figure 2 As shown, preferably, the first hinge 1 includes a rod interface 11, a preload interface 12 and a locking pin 13; the first hinge 1 adopts a plate-like st...

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PUM

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Abstract

The invention discloses a high-rigidity locking hinge with a fixed-pressure pre-tightening function. The high-rigidity locking hinge comprises a first hinging piece, a second hinging piece and a rotating shaft. The first hinging piece and the second hinging piece are fixedly connected with corresponding rods and each provided with a hole for mounting of the rotating shaft, and the first hinging piece and the second hinging piece are hinged through the rotating shaft and used for driving the two rods to be folded or unfolded. The second hinging piece is further provided with a fixed-pressure pre-tightening device used for enabling hinging pressing force to be constant. Through cooperation of the first hinging piece, the second hinging piece and the rotating shaft, the overall structure of the locking hinge is optimized, and the defect that a traditional locking hinge is poor in structure symmetry is overcome; and by arranging the fixed-pressure pre-tightening device and a releasing device, pre-tightening force after locking is effectively ensured, and the problem of weak thermal stability of a conventional locking hinge is solved.

Description

technical field [0001] The invention relates to a high-rigidity locking hinge with constant pressure pre-tightening, especially suitable for locking hinges requiring constant pre-tightening force, and belongs to the technical field of spatial structure connection mechanisms. Background technique [0002] The function of the locking hinge is to make the two structural parts connected by it realize fixed-axis rotation around the hinge axis, and realize high-rigidity locking at a specific angle. [0003] There are two main types of locking hinges commonly used in the field of space mechanisms: cam type and latch type. The cam-type locking hinge has simple composition and good specific stiffness, but the pre-tightening force after locking is small, and the structural symmetry is poor, and the thermal deformation is uneven in the space environment. The bolt-type locking mechanism usually adopts an orthogonal locking form, so that the linear motion of the locking rod is parallel ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C11/10F16C11/12
CPCF16C11/10F16C11/12
Inventor 于登云刘冬潘博张朴真张书洋王浩威李林史文华
Owner BEIJING INST OF SPACECRAFT SYST ENG