Unlock instant, AI-driven research and patent intelligence for your innovation.

Bionic intelligent separation and connection device based on 4D printing

A separate connection and 4D technology, applied in the field of bionic intelligent separation and connection devices, can solve the problems of inconvenient operation of the separation and connection devices

Active Publication Date: 2021-02-26
HUAZHONG UNIV OF SCI & TECH
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the above defects or improvement needs of the prior art, the present invention provides a bionic intelligent separation and connection device based on 4D printing, the purpose of which is to realize the intelligent connection and intelligent automatic separation of the separation connection device, thus solving the existing The technical problem that the disconnection device is inconvenient to operate and requires mechanical or human intervention

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Bionic intelligent separation and connection device based on 4D printing
  • Bionic intelligent separation and connection device based on 4D printing
  • Bionic intelligent separation and connection device based on 4D printing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] This embodiment provides a bionic intelligent separation and connection device, which includes a pair of bionic buckling single teeth. Bionic fastening single tooth includes upper tooth and lower tooth.

[0046] The upper teeth are made of nickel-titanium alloy; one end of the upper teeth and one end of the lower teeth are fixedly connected, the middle of the upper teeth is curved, and the other end of the upper teeth is a hook-like structure when it is higher than the phase transition temperature of the nickel-titanium alloy. At the transformation temperature of the alloy, the hook-like structure flattens into a continuous curved structure.

[0047]The upper part of the lower tooth is a plane, and the lower part is provided with a protrusion. The protrusion is provided with a groove. The groove is used to cooperate with the hook-shaped structure. Cavities match.

Embodiment 2

[0049] As shown in FIG. 1( a ) and FIG. 1( b ), this embodiment provides a bionic intelligent separation and connection device, which includes a pair of bionic buckling single teeth.

[0050] The bionic fastening single tooth includes an upper tooth 1 , a lower tooth 2 and a connecting tooth root 5 .

[0051] The upper tooth is made of nickel-titanium alloy; one end of the upper tooth and one end of the lower tooth are fixedly connected to the root of the connecting tooth, the middle of the upper tooth is curved, and the other end of the upper tooth is a hook-shaped structure when it is higher than the phase transition temperature of the nickel-titanium alloy. Below the phase transition temperature of NiTi alloy, the hook-like structure flattens into a continuous curved structure.

[0052] The upper part of the lower tooth is a plane, and the lower part is provided with a protrusion. The protrusion is provided with a groove. The groove is used to cooperate with the hook-shaped...

Embodiment 3

[0059] The bionic intelligent separation connection device provided in this embodiment has the same structure as that in Embodiment 2, the difference is that the bionic fastening single-tooth upper tooth in this embodiment is provided with a channel 3, and the lower tooth is provided with a channel 4, the channel 3 and channel 4 are provided with heating wires.

[0060] The bionic intelligent separation and connection device provided in this embodiment is used in an environment lower than the phase transition temperature of the nickel-titanium alloy used. At the temperature of the environment, the other end of the upper tooth of the bionic fastening single tooth is flattened into a continuous curved shape Therefore, before connecting, it is necessary to raise the temperature above the phase transition temperature of the nickel-titanium alloy to deform the other end of the upper tooth into a hook-like structure. When connecting, use the electric heating wire set in the channel ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a bionic intelligent separation and connection device based on 4D printing, which belongs to the field of separation and connection devices. The device includes a pair of bionic fastening single teeth, and the bionic fastening single tooth includes upper teeth and lower teeth; the upper teeth are made of nickel-titanium alloy; One end of the tooth is fixed to one end of the lower tooth, the middle of the upper tooth is bent, and the other end of the upper tooth is a hook-like structure when it is higher than the phase transition temperature of the nickel-titanium alloy, and a hook-like structure when it is lower than the phase transition temperature of the nickel-titanium alloy Flattened into a continuous curved structure; the top of the lower teeth is flat, and the bottom is provided with protrusions. The protrusions are provided with grooves. The grooves are used to cooperate with the hook-shaped structure. The opening cavity formed by the upper plane of the lower tooth matches. The upper teeth can be formed by 4D printing. An arrayable bionic intelligent separation connection device is also provided. The invention can be automatically separated and connected under the control of temperature without complicated mechanical mechanism, and has the characteristics of high efficiency, simplicity, high mobility, tight connection and intelligent separation.

Description

technical field [0001] The invention belongs to the field of separation and connection devices, and more specifically relates to a bionic intelligent separation and connection device based on 4D printing. Background technique [0002] Separation connection devices are widely used in aerospace, mechanical engineering, military equipment and other fields. For example, when a rocket is launched, the automatic separation of multi-stage engines requires a specially designed separation connection device. Bolt and nut connections commonly used in the field of mechanical engineering, rivets connection etc. For the traditional connection and separation methods, it is impossible to achieve intelligence. Taking the commonly used pin connection as an example, after pre-connection, it requires manual intervention and mechanical action to separate it, and intelligent automatic separation cannot be realized. [0003] NiTi alloy is a smart material with many excellent properties, and NiTi ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F16B1/02
CPCF16B1/02F16B2200/77
Inventor 文世峰陈道兵周燕刘洋陈柯宇王冲胡辉史玉升
Owner HUAZHONG UNIV OF SCI & TECH