CN105270651B

CN105270651B - Internal shrink gradual change inflatable docking apparatus for space

Info

Publication number: CN105270651B
Application number: CN201510804823.4A
Authority: CN
Inventors: 刘岗
Original assignee: Chengdu Er Jue Science And Technology Ltd
Current assignee: Chengdu Er Jue Science And Technology Ltd
Priority date: 2015-11-20
Filing date: 2015-11-20
Publication date: 2017-04-19
Anticipated expiration: 2035-11-20
Also published as: CN105270651A

Abstract

The invention discloses an internal shrink ladder type inflatable docking apparatus for space. The apparatus comprises a docking pipeline, the docking pipeline comprises an external pipe and an internal pipe which are coaxial, an interlayer space is arranged between the external pipe and the internal pipe, the first end of the docking pipeline is connected with a connection flange, the second ends of the external pipe and the internal pipe are in enclosed connection, multiple groups of annular blocks are successively arranged from the second end to the first end on the inner wall of the internal pipe and intervals are gradually changed, each group of annular blocks is composed of two closely arranged annular blocks, tubular elastomers are installed between two adjacent groups of annular blocks respectively in a sealing mode, the tightness of the multiple elastomers is the same or basically the same, and the pipe wall of the internal pipe disposed between an initial group of annular blocks and a tail group of annular blocks is provided with multiple through holes which are communicated from the inside to the outside. According to the invention, a mode of installing the elastomers on the internal pipe of the docking pipeline in a sealing manner is employed so that the stability of the whole docking apparatus after docking is enhanced, reliable operation of a control object is facilitated, and the adaptation scope of the docking apparatus is expanded.

Description

Gradual change inflatable docking facilities are inside contracted for space

Technical field

The present invention relates to a kind of docking facilities of space flight, more particularly, to space inside contract gradual change inflatable pair Connection device.

Background technology

With the development of aerospace industry, various space equipments are more and more, such as various space satellites, space station, space flight Aircraft etc..These space equipments run on high to be needed to carry out various change operation in some cases, such as satellite is carried out In-orbit docking, to realize capture, posture adjustment, the change operation such as rail and transfer of extraterrestrial target.

Existing docking mechanism typically adopts mechanical docking mechanism, there is that complex structure, transmitting size be big, control is required The shortcomings of high, control difficulty is big, easy damaged docks target.

In order to solve the above problems, there is patent document to propose inflatable docking mechanism, such as number of patent application is The application for a patent for invention of " 201510139308.9 ", discloses a kind of front end and expands formula inflation docking mechanism, comprising support tube and Termination is expanded, the front end that termination is arranged on support tube is expanded, termination is expanded and is arranged with support tube center alignment, expanded termination and prop up Stay tube is fixedly connected, and support tube and expansion termination are all flexible gas-filled structures, and the external diameter of support tube is less than expansion termination and support The length of the most long straight line distance on the parallel section in the cross section of pipe；The side of support tube is provided with longitudinal volume Spring.This structure adopts inflatable structure, with simple structure, be easy to docking, docking operation control require that low, control mode is simple Single, transmitting small volume, lightweight, low cost and other advantages, but, the front end that termination is arranged on support tube is expanded, support tube is to swollen The underbraced of swollen termination, makes expansion termination be not sufficiently stable after inflation docking, and is one due to expanding termination, and it is most suitable Suitable rate of tension correspondence one, so the diameter of the docking object for most adapting to can only be one, which limit the docking mechanism The scope of application；In addition, the docking mechanism can not be used to dock the situation that object is solid post.

The content of the invention

The purpose of the present invention is that and provide that a kind of docking is stable in order to solve the above problems, applied widely is used for Space inside contracts gradual change inflatable docking facilities.

The present invention is achieved through the following technical solutions above-mentioned purpose：

It is a kind of to inside contract gradual change inflatable docking facilities for space, including pipeline is docked, the first of the docking pipeline End is provided with adpting flange, and the docking pipeline includes coaxial outer tube and inner tube, is folder between the outer tube and said inner tube Sheaf space, the first end of the outer tube and the first end of said inner tube are connected and on the adpting flange with the adpting flange The annular through-hole communicated with the mezzanine space is provided with, closing between the second end of the outer tube and the second end of said inner tube connects Connect, start from the second end to be sequentially provided with multigroup collar stop and multigroup ring to the direction of first end on the inwall of said inner tube Spacing between shape block is increasing or less and less, and per group of collar stop is by two annular gears near arrangement Block is constituted, and is separately installed with the elastomer of tubulose described in two adjacent groups between collar stop, the two ends of the elastomer respectively with Collar stop described in corresponding two groups is tightly connected, and the termination of the elastomer is placed between two collar stops and close Envelope, the elasticity of multiple elastomers is identical or essentially identical, in described between collar stop described in two groups of initial and end The tube wall of pipe is provided with the through hole being interlinked to the outside in multiple.

In said structure, collar stop is used to install elastomer, multiple elastomers after mounting with the common shape of inner core inwall Into utricule, air bag is formed after inflation, its enlarged-diameter is tight between realization and the docking post or the outer wall of butt tube that dock object Close connection, so as to realize rapid abutting joint；The structure of multiple elastomers can be in the feelings of optimum rate of tension in each elastomer Closely connection is realized under condition with other docking posts or butt tube of corresponding diameter.

Specifically, the collar stop is altogether five groups, and the elastomer is altogether four, the length of four elastomers Degree is sequentially reduced from the second end of said inner tube to the direction of first end.

Preferably, the elastomer is followed successively by from inside to outside inner liner, bearing layer and elastic layer.

It is highly preferred that the inner liner is butyl rubber film, the bearing layer is aramid fiber, and the elastic layer is rubber Glue film.

The beneficial effects of the present invention is：

The present invention makes also after elastomer inflation by the way of elastomeric seal is installed in the inner tube of docking pipeline It is stably connected with inner tube, so as to enhance the stability after whole docking facilities are docked, is conducive to carrying out reliability to control object Operation；Using multiple increasing lengths or successively decrease and elastomer that elasticity is consistent, make this docking facilities be adapted to multiple diameter Different docking objects, so as to expand the scope of application of this docking facilities, and when the docking object being relatively large in diameter is used for, Because the air bag for having more than one elastomer to be formed after inflating can be with the wall contacts for docking object, so its docking is stable Property can be improved further；This docking facilities is applied to and docks object-based device pair with compared with pipe with small pipe diameter hollow pipe or solid post Connect.

Description of the drawings

Fig. 1 is that front view structure when inside contracting gradual change inflatable docking facilities unaerated for space of the present invention is illustrated Figure, shows the structure in docking pipeline in figure；

Fig. 2 is the main structure diagram inside contracted after the inflation of gradual change inflatable docking facilities for space of the present invention One of, the structure in docking pipeline is shown in figure；

Fig. 3 is the main structure diagram inside contracted after the inflation of gradual change inflatable docking facilities for space of the present invention Two, show in figure docking pipeline in structure；

Fig. 4 is the main structure diagram inside contracted after the inflation of gradual change inflatable docking facilities for space of the present invention Three, show in figure docking pipeline in structure；

Fig. 5 is the main structure diagram inside contracted after the inflation of gradual change inflatable docking facilities for space of the present invention Four, show in figure docking pipeline in structure.

Specific embodiment

Below in conjunction with the accompanying drawings the invention will be further described：

As shown in figure 1, the gradual change inflatable docking facilities that inside contract for space of the present invention include docking pipeline, it is described The first end of docking pipeline（Right-hand member in figure）Adpting flange 10 is installed, the docking pipeline includes coaxial outer tube 7 and inner tube 8, it is mezzanine space 9 between outer tube 7 and inner tube 8, the first end of outer tube 7（Right-hand member in figure）With the first end of inner tube 8（It is right in figure End）It is connected with adpting flange 10 and adpting flange 10 is provided with the annular through-hole communicated with mezzanine space 9（Do not show in figure）, outward Second end of pipe 7（Left end in figure）With the second end of inner tube 8（Left end in figure）Between closing connection, from the on the inwall of inner tube 8 The spacing that two ends start to be sequentially provided between five groups of collar stops 1 and five groups of collar stops 1 to the direction of first end is less and less, Can also be increasing, every group of collar stop 1 by two near arrangement collar stops 1 constitute, two adjacent groups collar stop 1 it Between be separately installed with the elastomer of tubulose, including the first elastomer 2, the second elastomer 3, the 3rd elastomer 5 and the 4th elastomer 6, the two ends of each elastomer are tightly connected respectively with corresponding two groups of collar stops 1, and the termination of each elastomer is placed in two annulars Between block 1 and sealed, the elasticity phase of the first elastomer 2, the second elastomer 3, the 3rd elastomer 5 and the 4th elastomer 6 Same or essentially identical, the tube wall of the inner tube 8 between two groups of collar stops 1 of initial and end is provided with the through holes being interlinked to the outside in multiple 4, the length of the first elastomer 2, the second elastomer 3, the 3rd elastomer 5 and the 4th elastomer 6 is sequentially reduced；Each elastomer is by interior And inner liner, bearing layer and elastic layer are followed successively by outward, inner liner is butyl rubber film, and bearing layer is aramid fiber, elastic layer For rubber film.

As Figure 1-Figure 5, when using, this docking facilities is connected on the control device by adpting flange 10, and will The mezzanine space 9 of docking pipeline is connected with the high-pressure air feed seal of tube of control device, non-aerating before docking, and each elastomer invests interior The inwall of pipe 8, its overall internal diameter is larger, it is easy to be inserted on the docking object i.e. docking post of controlled device；By inner tube 8 be inserted in by After on the docking post of control equipment, start to be inflated into mezzanine space 9, the external diameter of the air pressure of inflation according to the docking post of controlled device It is specific as follows to determine：

As shown in Fig. 2 when the external diameter of the docking post of controlled device is less, inner gas pressure is relatively large, due to the first bullet The length of gonosome 2 is most long, so expansion is maximum after its inflation, the internal diameter of the air bag being collectively forming with the inwall of inner tube 8 after inflation The central through hole diameter that minimum, i.e. air bag are surrounded is minimum, after the second elastomer 3, the 3rd elastomer 5 and the 4th elastomer 6 are inflated The internal diameter of the air bag being collectively forming with the inwall of inner tube 8 increases successively, i.e., the diameter of the central through hole that each air bag is surrounded increases successively Greatly, the inwall of air bag that now the first elastomer 2 is collectively forming after inflating with the inwall of inner tube 8 and controlled device dock post Wall contacts.

As shown in figure 3, when the external diameter of the docking post of controlled device is big a bit, inner gas pressure is a little bit smaller, the first elastomer 2 Expand larger and internal diameter is basically identical after inflating with the second elastomer 3, the 3rd elastomer 5 and the 4th elastomer 6 inflate after with it is interior The internal diameter of the air bag that the inwall of pipe 8 is collectively forming is sequentially reduced, after now the first elastomer 2 and the second elastomer 3 are inflated with it is interior The inwall of the air bag that the inwall of pipe 8 is collectively forming with the wall contacts for docking post of controlled device.

As shown in figure 4, when the internal diameter of the docking post of controlled device is big a bit again, inner gas pressure is a little bit smaller again, the first bullet Larger and internal diameter is expanded after the inflation of gonosome 2, the second elastomer 3 and the 3rd elastomer 5 basically identical, after the 4th elastomer 6 is inflated The internal diameter of the air bag being collectively forming with the inwall of inner tube 8 is minimum, now the first elastomer 2, the second elastomer 3 and the 3rd elastomer The inwall of air bag being collectively forming with the inwall of inner tube 8 after 5 inflations with the wall contacts for docking post of controlled device.

As shown in figure 5, in the largest outside diameter of the docking post of controlled device, inner gas pressure is minimum, the first elastomer 2, the Internal diameter is basically identical after two elastomers 3, the 3rd elastomer 5 and the 4th elastomer 6 are inflated, and now the first elastomer 2, second is elastic The inwall of the air bag that body 3, the 3rd elastomer 5 and the 4th elastomer 6 are collectively forming after inflating with the inwall of inner tube 8 sets with controlled The wall contacts of standby docking post.

Above-described embodiment is presently preferred embodiments of the present invention, is not the restriction to technical solution of the present invention, as long as Without the technical scheme that creative work can be realized on the basis of above-described embodiment, it is regarded as falling into patent of the present invention Rights protection scope in.

Claims

1. it is a kind of to inside contract gradual change inflatable docking facilities, including docking pipeline, the first end of the docking pipeline for space Adpting flange is installed, it is characterised in that：The docking pipeline includes coaxial outer tube and inner tube, the outer tube and said inner tube Between be mezzanine space, the first end of the outer tube and the first end of said inner tube are connected and the company with the adpting flange Acting flange is provided with the annular through-hole communicated with the mezzanine space, the second end of the outer tube and the second end of said inner tube it Between closing connection, start from the second end to be sequentially provided with multigroup collar stop and many to the direction of first end on the inwall of said inner tube Spacing between the group collar stop is increasing or less and less, and per group of collar stop is by two institutes near arrangement Collar stop composition is stated, the elastomer of tubulose is separately installed with described in two adjacent groups between collar stop, the two of the elastomer End is tightly connected respectively with collar stop described in corresponding two groups, the termination of the elastomer be placed in two collar stops it Between and sealed, the elasticity of multiple elastomers is identical or essentially identical, between collar stop described in two groups of initial and end The tube wall of said inner tube be provided with the through holes that are interlinked to the outside in multiple.

It is 2. according to claim 1 to inside contract gradual change inflatable docking facilities for space, it is characterised in that：The annular Block is altogether five groups, and the elastomer is altogether four, the length of four elastomers from said inner tube the second end to The direction of first end is sequentially reduced.

It is 3. according to claim 1 and 2 to inside contract gradual change inflatable docking facilities for space, it is characterised in that：It is described Elastomer is followed successively by from inside to outside inner liner, bearing layer and elastic layer.

It is 4. according to claim 3 to inside contract gradual change inflatable docking facilities for space, it is characterised in that：It is described airtight Layer is butyl rubber film, and the bearing layer is aramid fiber, and the elastic layer is rubber film.