CN211468827U

CN211468827U - Spatial flying net compressing and releasing mechanism

Info

Publication number: CN211468827U
Application number: CN201922325732.9U
Authority: CN
Inventors: 陈广南; 熊镇
Original assignee: Hunan Cangshu Aerospace Technology Co ltd
Current assignee: Hunan Cangshu Aerospace Technology Co ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-09-11
Anticipated expiration: 2029-12-23

Abstract

The utility model discloses a space flies net and compresses tightly release mechanism, include: the net bag is of a flexible cylindrical structure with at least one end open, and an isolation structure capable of isolating the flying net in the space is arranged in the net bag; the pressing piece is of a flexible structure and is wound on the side wall of the net bag to be used for pressing the net bag; the hot knife component is arranged on the side wall of the net bag, and is provided with an electric heating type heating element which can generate heat after being electrified; the pressing piece penetrates through the hot knife assembly in the process of winding the net bag and is in contact connection with the electric heating type heating element. Compress tightly the pocket through compressing tightly the piece, ensure that the space flies to be in orderly state in the pocket, prevent that the space flies to net collapse in disorder, fly to net at the space and launch when catching the task, utilize the electric heat type heating element among the hot knife tackle spare to compress tightly the piece and carry out high temperature fusing, realize flying the pocket of net to release the space, make it change to lax state by compressing tightly the state to smooth pull out and launch the space and fly to net.

Description

Spatial flying net compressing and releasing mechanism

Technical Field

The utility model belongs to the space flies the net and compresses tightly release design field, relates to fly the scheme design that the net compressed tightly the release demand to the space, be applicable to the flexible mechanism design that flies the net when accomodating of space compress tightly, during operation release state, concretely relates to space flies the net and compresses tightly release mechanism.

Background

The space fly net has the advantages of strong fault-tolerant capability, long capture distance, low capture precision requirement, low cost, capability of implementing multiple capture tasks by one-time launching and the like, and has huge application potential in the field of active removal of space debris and abandoned satellites. The space flying net has the soft characteristic, firstly, the flying net is compressed into a storage bin with a certain volume through folding and storage, when a mission tug approaches a target spacecraft, the flexible flying net is pulled out and unfolded through a launching mass block, a large-area flying net is formed to cover and capture the target spacecraft, and then the flying net is dragged to leave an orbit.

Need encapsulate in the collecting storage facility before the space flies the net carries out the transmission task, it can experience strong vibration before the orbit, consider the flexible lax characteristic that flies the net, can take place to collapse when it receives interference such as vibration, and the space flies the net and belongs to large tracts of land topological structure, it collapses can lead to intertwine between the net rope, the scheduling problem of knoing, thereby make the space fly the net reliably expand, lose normal working property, consequently, need fly the net package to the space before the transmission task and compress tightly fixedly, prevent that it from producing the phenomenon such as disorder of collapsing because of factors such as vibration. When the space fly net carries out the launching and capturing task, the space fly net is dragged by the mass block with the initial kinetic energy, and at the moment, the space fly net needs to be in a loose state so as to be smoothly pulled out and unfolded by the mass block in a dragging way, so that the space fly net package needs to be released when the launching task is carried out, and the space fly net is in a loose state.

SUMMERY OF THE UTILITY MODEL

Aiming at the problem that the space flying net collapses when being interfered by vibration and the like in a storage bin in the prior art, the utility model provides a space flying net compressing and releasing mechanism which compresses a net bag of the space flying net before a space flying net launching task, ensures that the space flying net is in an ordered state in the net bag and prevents the space flying net from collapsing and disordering; when the space fly net carries out launching and capturing tasks, the net bag of the space fly net can be released, and the space fly net is enabled to be converted from a compact state to a loose state, so that the space fly net can be smoothly pulled out and unfolded.

In order to achieve the above object, the present invention provides a spatial fly net compressing and releasing mechanism, including:

the net bag is a flexible cylindrical structure with at least one end open, and an isolation structure capable of accommodating the spatial flying net is arranged in the net bag;

the pressing piece is of a flexible structure and is wound on the side wall of the net bag to be used for pressing the net bag;

the hot knife component is arranged on the side wall of the net bag, and is provided with an electric heating type heating element which can generate heat after being electrified;

the pressing piece penetrates through the hot knife assembly in the process of winding the net bag and is in contact connection with the electric heating element, so that the electric heating element fuses the pressing piece after heating, and the release of the space flying net is completed.

As a further improvement of the above technical solution, the hot knife assembly comprises a base, a cover body, and a heat insulation member, wherein the base is fixedly connected to the side wall of the net bag;

the cover body is fixedly connected to the base and forms a cavity with the base, the heat insulation piece is fixedly arranged in the cavity, the electric heating element is arranged on the heat insulation piece, and a cable extending out of the cavity is arranged on the electric heating element and is used for being connected with an external power supply;

the pressing piece penetrates through the cavity in the process of winding the net bag and is connected with the electric heating type heating element in a contact mode.

As a further improvement of the above technical solution, the compressing member penetrates through the cavity and is connected to the electrothermal heating element in contact therewith in the process of winding the net bag, specifically:

the pressing piece penetrates through the cavity in the process of winding the net bag and is in contact connection with one side, back to the net bag, of the electric heating type heating element.

As a further improvement of the technical scheme, the hot knife assembly is further provided with a judging structure capable of judging whether the pressing piece is fused or not.

As a further improvement of the above technical solution, the determination structure includes a switch member and a trigger member disposed in the cavity, the switch member is a passive device, and the switch member is provided with a switch contact;

one end of the trigger piece is hinged to the base, and the pressing piece penetrates through the cavity in the net bag winding process and is in contact connection with one side, back to the net bag, of the other end of the trigger piece;

before the pressing piece is fused, the end part of the trigger piece is in contact connection with the pressing piece, and the pressing force applied on the trigger piece by the pressing piece enables the trigger piece to press the switch contact on the switch piece;

when the pressing piece is fused, the end part of the trigger piece is separated from the pressing piece, and the trigger piece no longer has pressing force, so that the switch contact on the switch piece is released.

As a further improvement of the technical scheme, a plurality of positioning pieces are arranged on the side wall of the net bag at intervals along the circumferential direction, and the pressing piece penetrates through the positioning pieces in the net bag winding process.

As a further improvement of the above technical scheme, the number of the pressing pieces is two or more, and the pressing pieces are wound on the side wall of the net bag at intervals along the axial direction of the net bag;

each pressing piece penetrates through at least one hot knife assembly in the process of winding the net bag, and the number of the electric heating type heating elements on each hot knife assembly is at least one.

As a further improvement of the above technical scheme, the net bag comprises a bottom plate and a cylindrical side cloth plate arranged on the bottom plate, and the pressing piece and the hot knife assembly are both arranged on the outer wall of the side cloth plate;

the winding structure comprises a plurality of cylindrical isolation cloths arranged in the side cloth plate, the side cloth plate and the cylindrical isolation cloths are sleeved layer by layer and form a plurality of annular cavities, and the space flying net is nested in each annular cavity.

As a further improvement of the technical scheme, the side cloth plate and each cylindrical isolation cloth are both circular cylinders, and the axes of the side cloth plate and each cylindrical isolation cloth are coincident with each other.

The utility model provides a pair of space flies to net and compresses tightly release mechanism, utilize the net package to accomodate the space and fly to compress tightly the net package through compressing tightly the piece after the net, ensure that the space flies to net and is in the orderly state in the net package, prevent that the space from flying to net collapse in disorder, fly to net at the space and launch when catching the task, utilize the electric heating formula heating element among the hot knife tackle spare to compress tightly the piece and carry out high temperature fusing, the realization is released the net package that flies to the space, make it convert to lax state by compressing tightly the state, so that smooth pull out and launch the space and fly to net.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic overall structure diagram of a spatial flying net compressing and releasing mechanism in an embodiment of the present invention;

fig. 2 is a schematic view of an internal structure of a mesh bag nested space fly net in an embodiment of the present invention;

FIG. 3 is a schematic structural view of a hot knife assembly according to an embodiment of the present invention;

fig. 4 is a schematic structural view of the pressing member in contact connection with the electrothermal heating element according to the embodiment of the present invention;

fig. 5 is a schematic structural view of the pressing member passing through the positioning member in the embodiment of the present invention.

The reference numbers illustrate: 1-net bag, 11-bottom plate, 12-side cloth plate, 13-cylindrical isolation cloth, 14-positioning winding drum, 2-pressing piece, 3-hot knife component, 31-electric heating element, 32-base, 33-cover body, 34-switch piece, 35-heat insulation piece, 36-trigger piece, 37-cable and 4-space flying net

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection, physical connection or wireless communication connection; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

The spatial flying net compressing and releasing mechanism shown in fig. 1-5 comprises a net bag 1, a compressing piece 2 and a hot knife assembly 3. Specifically, the net bag 1 is a cylindrical structure with at least one open end, and an isolation structure capable of accommodating the spatial fly net 4 is arranged in the net bag 1; the pressing piece 2 is wound on the side wall of the net bag 1 to be used for pressing the net bag 1; the hot knife assembly 3 is arranged on the side wall of the net bag 1, and an electric heating type heating element 31 which can generate heat and generate high temperature after being electrified is arranged on the hot knife assembly 3; the pressing piece 2 penetrates through the hot knife assembly 3 in the process of winding the net bag 1 and is in contact connection with the electric heating element 31, so that the electric heating element 31 fuses the pressing piece 2 after heating, and then the space flying net 4 is released.

This embodiment utilizes 1 take in space of pocket to fly to compress tightly 1 of pocket through compressing tightly 2 behind the net 4, ensure that the space flies to be in the orderly state of net 4 in 1 of pocket, prevent that the space from flying to fly to net 4 collapse in disorder, fly to net 4 in the space and launch when catching the task, utilize electric heat type heating element 31 in the hot knife tackle spare 3 to compress tightly 2 and carry out high temperature fusing, the realization flies to net 1 of net 4 to release the space, make it convert to the lax state by compressing tightly the state, so that smooth pull out and expansion space fly to net 4.

The net bag 1 comprises a bottom plate 11 and a cylindrical side cloth plate 12 arranged on the bottom plate 11, and the pressing piece 2 and the hot knife assembly 3 are arranged on the outer wall of the side cloth plate 12; the winding structure comprises a plurality of cylindrical isolation cloths 13 arranged in a side cloth plate 12, the side cloth plate 12 and each cylindrical isolation cloth 13 are sleeved layer by layer and enclose a plurality of annular cavities, each annular cavity is also sleeved layer by layer, and the space fly net 4 is nested in each annular cavity; preferably, the side cloth plate 12 and each cylindrical spacer cloth 13 are both circular cylinders, and the axes of the side cloth plate 12 and each cylindrical spacer cloth 13 are all overlapped with each other. The cylindrical spacer cloth 13 is a single-layer flexible cloth, and the side cloth 12 is a hard cloth formed by compressing multiple layers of flexible cloth.

The pressing piece 2 is a pressing rope made of polyethylene materials, the electric heating element 31 is an electric heating pipe, the electric heating pipe is a direct current supply heating element, and the pressing piece 2 can be reliably cut off after the electric heating element 31 is electrified and heated through resistance heating effect. The number of the pressing pieces 2 is two or more, and each pressing piece 2 is wound on the side wall of the net bag 1 at intervals along the axial direction of the net bag 1; each pressing member 2 passes through at least one hot knife assembly 3 in the process of winding the net bag 1, and the number of the electric heating type heating elements 31 on the hot knife assembly 3 is at least one. In the embodiment, the number of the pressing pieces 2 is two, and the two pressing pieces 2 are wound on the side wall of the net bag 1 at intervals along the axial direction of the net bag 1; the number of the hot knife assemblies 3 is two, each hot knife assembly 3 is provided with two electric heating type heating elements 31, each pressing piece 2 is wound on the net bag 1 for two circles, and each pressing piece 2 penetrates through one hot knife assembly 3 in the process of winding the net bag 1 and is in contact connection with the two electric heating type heating elements 31 in the hot knife assembly 3, so that the redundant design is achieved. The circuit structure of the electric heating tube that heats after being electrified is a conventional technical means, and therefore, the detailed description is omitted in this embodiment.

The hot knife assembly 3 comprises a base 32, a cover body 33 and a heat insulation piece 35, wherein the base 32 is fixedly connected to the side wall of the net bag 1 through screws; the cover 33 is fixedly connected to the base 32 by bolts and forms a cavity with the base 32. Wherein the heat insulating member 35 is made of heat insulating material such as glass fiber, asbestos, etc.; the base 32 and the cover 33 are made of aluminum alloy material.

The heat insulation piece 35 is fixedly arranged in the cavity; the electrothermal heating elements 31 are disposed on the heat insulation member 35 to prevent other components in the hot knife assembly 3 from being damaged in the process of heating by the electrothermal heating elements 31, wherein each electrothermal heating element 31 corresponds to a plurality of heat insulation members 35, that is, while both ends of the electrothermal heating element 31 are respectively fixedly connected to the heat insulation member 35, the middle portion of the electrothermal heating element 31 is suspended, and the fixing manner between the electrothermal heating element 31 and the heat insulation member 35 can be clamping fixing or pressing plate fixing. In the present embodiment, the heat insulating member 35 and the electrothermal heating element 31 are fixed by providing the heat insulating pressing plate on the heat insulating member 35; the electric heating element 31 is provided with a cable 37 extending out of the cavity for connecting an external power supply, the cable 37 is fixed by a cable pressing plate, and the pressing piece 2 penetrates through the cavity in the process of winding the net bag 1 and is connected with the electric heating element 31 in a contact manner.

Preferably, the pressing member 2 passes through the cavity and is connected with the electrothermal heating element 31 in a contact manner in the process of winding the net bag 1, specifically: the pressing member 2 penetrates through the cavity in the process of winding the net bag 1 and is in contact connection with one side, back to the net bag 1, of the electric heating element 31, that is, as shown in fig. 4, so that the pressing member 2 is in close contact connection with the electric heating element 31 in the process of winding the net bag 1, and the reliability of the pressing member 2 that the electric heating element 31 is switched off after being electrified and heated is further improved.

The hot knife assembly is also provided with a judging structure capable of judging whether the pressing piece 2 is fused or not; the judging structure comprises a switch piece 34 and a trigger piece 36 which are arranged in the cavity, wherein the switch piece 34 is a passive device, and a switch contact is arranged on the switch piece 34; the switch member 34 in this embodiment is a travel switch, a switch base configured in advance with the travel switch is provided on the base 32, and the switch member 34 is fixedly connected to the base 32 through the switch base.

One end of the trigger 36 is hinged on the base, and the pressing part 2 penetrates through the cavity in the process of winding the net bag and is in contact connection with one side of the other end of the trigger 36, which is back to the net bag;

before the pressing member 2 is fused, the end of the trigger member 36 is in contact connection with the pressing member 2, the pressing force applied by the pressing member 2 on the trigger member 36 causes the trigger member 36 to press the switch contact on the switch member 34, and the judging process of the judging structure is as follows:

when the pressure member 2 is fused, the end of the trigger member 36 is separated from the pressure member 2, and the trigger member 36 no longer has a pressing force so that the switch contact on the switch member 34 is released.

The on-off state of the switch member 34 is changed through the trigger member 36, and the conduction of the energizing circuit of the electrothermal heating element 31 is further controlled, and finally the effect of fusing the pressing member 2 can be achieved. The circuit structure of the electrical connection between the electrical heating tube and the travel switch is a known technical means for those skilled in the art, and therefore, the detailed description thereof is omitted in this embodiment.

Preferably, the switch member 34 is a passive device, i.e., the switch member 34 has a pair of normally closed contacts, which open when the switch contacts of the travel switch are triggered by the trigger member 36 to indicate the pressed state, and close when the trigger member 36 is ejected to indicate the released state.

Referring to fig. 5, a plurality of positioning members 14 are circumferentially spaced on the side wall of the net bag 1. The positioning pieces 14 are of a structure similar to a staple and are welded or buckled on the side walls of the net bag 1, and the pressing piece 2 penetrates through the positioning pieces 14 in the process of winding the net bag 1, so that the stability of the pressing piece 2 in the axial direction of the net bag 1 when the net bag 1 is wound is kept.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. A spatial flynet compaction and release mechanism, comprising:

2. The spatial flynet compaction and release mechanism of claim 1, wherein the hot knife assembly comprises a base, a cover, and a thermal insulation element, the base being fixedly attached to a sidewall of the bale;

3. The spatial flynet compression and release mechanism of claim 2, wherein the compression member passes through the cavity during winding of the net bag and is in contact connection with a side of the electrothermal heating element facing away from the net bag.

4. The spatial flying net compressing and releasing mechanism according to claim 2, wherein the hot knife assembly is further provided with a judging structure capable of judging whether the compressing member is fused or not.

5. The spatial flynet compaction and release mechanism according to claim 4, wherein the determination structure comprises a switch member and a trigger member disposed in the cavity, the switch member is a passive device, and the switch member is provided with a switch contact;

6. The spatial flying net pressing and releasing mechanism according to any one of claims 1 to 5, wherein a plurality of positioning members are circumferentially arranged on the side wall of the net bag at intervals, and the pressing member penetrates through the positioning members in the process of winding the net bag.

7. The spatial flying net pressing and releasing mechanism according to any one of claims 1 to 5, wherein the number of the pressing pieces is two or more, and each pressing piece is wound on the side wall of the net bag at intervals along the axial direction of the net bag;

8. The spatial flying net compressing and releasing mechanism according to any one of claims 1 to 5, wherein the net bag comprises a bottom plate and a cylindrical side cloth plate arranged on the bottom plate, and the compressing piece and the hot knife assembly are arranged on the outer wall of the side cloth plate;

the isolation structure comprises a plurality of cylindrical isolation cloths arranged in the side cloth plate, the side cloth plate and the cylindrical isolation cloths are sleeved layer by layer and form a plurality of annular cavities, and the space flying net is nested in each annular cavity.

9. The spatial flying net compressing and releasing mechanism according to claim 8, wherein the side cloth plate and each cylindrical isolation cloth are circular cylinders, and the axes of the side cloth plate and each cylindrical isolation cloth are coincident with each other.