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Variable stiffness rotary type bi-directional buffer device

A two-way buffering and rotating technology, which is applied to the docking device of aerospace vehicle, friction shock absorber, etc., can solve the problems of small buffering torque, difficult manufacturing, strict assembly process, etc., to reduce the peak impact load, and easy to achieve. , processing simple effect

Active Publication Date: 2013-09-25
SHANGHAI AEROSPACE SYST ENG INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, a variety of rotating two-way buffer devices are used in space vehicles in the aerospace field, but these buffer devices are specially developed for the aerospace field, requiring small volume and weight, high product precision, difficult manufacturing, strict assembly process, and buffering The torque is relatively small and the stiffness is not variable, so it is not suitable for popularization and application in the general industrial production field

Method used

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  • Variable stiffness rotary type bi-directional buffer device
  • Variable stiffness rotary type bi-directional buffer device
  • Variable stiffness rotary type bi-directional buffer device

Examples

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Embodiment

[0029] figure 1 , 2 It is a structural schematic diagram of an embodiment of the variable stiffness rotary two-way buffer device of the present invention. figure 1 shows its structural shape and composition, figure 2 A schematic structural view of the slider crank assembly is shown. figure 1 The housing of the shown device is equipped with six compression springs 5 ​​used in groups as buffer elements, which can be adjusted according to the structural size, buffer angle and torque characteristic requirements in actual application. figure 2 The crank turntable 8 shown has three arc grooves, each with an opening angle of 90°, corresponding to an achievable buffer angle of 30°. In practical applications, the arc groove opening angle can be adjusted to achieve 0° to 30°. ° buffer angle.

[0030] image 3 , 4 It is a schematic diagram of two working states of the variable stiffness rotary two-way buffer device of the present invention. image 3 It shows the schematic diagra...

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Abstract

The invention relates to general industrial buffer transmission equipment, and the problem to be solved is: to provide a variable stiffness rotating bidirectional buffer device, which can provide a mechanical buffer protection device for flexible operating systems such as mechanical arms. It is characterized in that: the load-bearing input mechanism is an input flange (1) coaxially installed on the housing (2) and capable of bidirectional rotation relative to the housing; the transmission mechanism is a crank slider assembly (6); the The buffer mechanism is a piston assembly with a compression spring (5) as a buffer energy storage element arranged on the housing (2); the crank slider assembly (6) can convert the bidirectional rotational motion of the input flange (1) The compression spring (5) is compressed for the piston movement. The device can absorb relatively large energy in a relatively short time and in an angular stroke to realize buffering. The single pressure spring used as a buffering energy storage element is simple in processing and easy to assemble. The buffer stiffness of the device increases from small to large with the stroke, which can effectively reduce the peak impact load at the moment of buffering start.

Description

technical field [0001] The invention relates to general industrial buffer transmission equipment, in particular to a flexible operation buffer energy storage protection device. Background technique [0002] In the prior art, a variety of rotating two-way buffer devices are used in space vehicles in the aerospace field, but these buffer devices are specially developed for the aerospace field, requiring small volume and weight, high product precision, difficult manufacturing, strict assembly process, and buffering The torque is relatively small and the rigidity is not variable, so it is not suitable for popularization and application in the general industrial production field. Contents of the invention [0003] The purpose of the present invention is to provide a variable stiffness rotary two-way buffer device, which can provide a mechanical buffer protection device for flexible operating systems such as general industrial mechanical arms, as a backup and compensation for el...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F7/09B64G1/64
Inventor 杨新海
Owner SHANGHAI AEROSPACE SYST ENG INST