Foldable space junk collector used based on carrier rocket

Abstract

The invention relates to the technical field of aerospace, in particular to a foldable space junk recoverer used based on a carrier rocket, which comprises a carrier rocket upper stage, a one-way rotary structure, a recoverer cloth cover, a recoverer framework and a folding and unfolding mechanism, the appearance of the upper-stage upper part is cylindrical, the appearance of the upper-stage lower part is conical, the lower end of the upper-stage upper part is connected with the upper end of the upper-stage lower part, and the conical surface faces the upper-stage upper part; the one-way rotation structure is fixed to the joint of the upper-stage upper portion and the upper-stage lower portion. The inner end of the recoverer framework is hinged to the one-way rotation structures, the left end and the right end of the folding and unfolding mechanism are connected with the outer ends of the two adjacent one-way rotation structures correspondingly, and the folding and unfolding mechanism and the two adjacent one-way rotation structures define an arrangement frame. The edges of the recoverer cloth covers are fixedly connected to the arrangement frames, and the recoverer cloth covers are stacked between the arrangement frames. The space and transport capacity of the carrier rocket occupied by the aircraft for destroying the space junk can be reduced.

Description

Technical Field

[0001] The present application relates to the field of aerospace technology, and in particular to a foldable space garbage collector based on a launch vehicle. Background Art

[0002] As the number of launch vehicles increases year by year, more and more space debris is generated. The density of space debris is getting higher and higher, which poses a great safety hazard to space activities. Therefore, space debris needs to be dealt with. There are generally two measures for dealing with space debris: one is monitoring and the other is destruction. By monitoring the movement trajectory of space debris, the launch vehicle guides the space debris in the predetermined orbit, changes the movement trajectory of space debris, and causes it to rub against the atmosphere to complete destruction.

[0003] The existing method of destroying space junk requires the independent launch of spacecraft, which will also generate space junk while processing space junk. In addition, the spacecraft launched to destroy space junk have a certain weight and volume, occupying the transportation space and capacity of the launch vehicle, greatly increasing the cost of space junk disposal and reducing the launch efficiency.

[0004] Therefore, how to reduce the space and capacity occupied by aircraft that destroy space debris on launch vehicles, reduce the generation of space debris, and reduce the cost of space debris disposal is a technical problem that technical personnel in this field urgently need to solve. Summary of the invention

[0005] The present application provides a foldable space debris collector based on a launch vehicle to reduce its weight and reduce the space occupied by the launch vehicle. It can be applied to daily launch vehicle launch scenarios, increase the number of launches, reduce the generation of space debris, and reduce the cost of space debris disposal.

[0006] In order to solve the above technical problems, this application provides the following technical solutions:

[0007] A foldable space garbage recycler based on a launch vehicle comprises: a launch vehicle upper stage, a plurality of one-way rotating structures, a plurality of recycler cloth surfaces, a plurality of recycler skeletons and a plurality of folding and unfolding mechanisms; wherein the launch vehicle upper stage comprises: an upper portion of an upper stage and a lower portion of an upper stage; the upper portion of the upper stage has a cylindrical shape, the lower portion of the upper stage has a conical shape, the lower end of the upper portion of the upper stage is connected to the upper end of the lower portion of the upper stage, and the conical surface faces the upper portion of the upper stage; all the one-way rotating structures are fixed at the junction of the upper portion of the upper stage and the lower portion of the upper stage, and are spaced apart from two adjacent one-way rotating structures; the inner end of a recycler skeleton is hinged to a one-way rotating structure, the left and right ends of a folding and unfolding mechanism are respectively connected to the outer ends of two adjacent one-way rotating structures, and a folding and unfolding mechanism, two adjacent one-way rotating structures and the corresponding positions of the junction of the upper portion of the upper stage and the lower portion of the upper stage form an arrangement frame; the edge of a recycler cloth surface is fixedly connected to an arrangement frame, and each recycler cloth surface is stacked between the arrangement frames.

[0008] As described above, the foldable space garbage collector based on the launch vehicle is preferably shortened and the circle surrounded by all the folding and unfolding mechanisms is reduced; all the collector frames, folding and unfolding mechanisms and collector cloth surfaces are attached to the conical surface of the lower part of the upper stage.

[0009] As described above, the foldable space garbage recycler based on the launch vehicle is preferably extended, and the circle surrounded by all the folding and unfolding mechanisms is expanded; all the folding and unfolding mechanisms are away from the conical surface of the lower part of the upper stage, and all the recycler frames rotate around the one-way rotating structure to make them perpendicular to the cylindrical surface of the upper part of the upper stage, and the stacked recycler cloth surfaces are away from the conical surface of the lower part of the upper stage, so that the arrangement frame and the recycler cloth surfaces form a circular net bag.

[0010] As described above, the foldable space garbage collector based on the launch vehicle, wherein preferably, four one-way rotating structures are evenly fixed at the junction of the upper part of the upper stage and the lower part of the upper stage, and four collector frames are hinged to the four one-way rotating structures.

[0011] As described above, in the foldable space garbage collector based on the launch vehicle, preferably, the one-way rotating structure is provided with auxiliary rotating force by a spring, and the collector skeleton is driven to rotate by the spring.

[0012] As described above, the foldable space garbage recycler based on the launch vehicle is preferably provided with a fixing groove in the one-way rotating structure, and the inner end of the recycler frame has a limiting protrusion, and when the recycler frame rotates around the one-way rotating structure until it is perpendicular to the cylindrical surface of the upper part of the upper stage, the limiting protrusion is stuck in the fixing groove.

[0013] A foldable space garbage recycler based on a launch vehicle as described above, wherein preferably, each recycler skeleton comprises: a main skeleton and a sub-skeleton; the inner end of the main skeleton is hinged to the one-way rotating structure, the outer end of the main skeleton is vertically fixedly connected to the middle position of the sub-skeleton, the left end of the sub-skeleton is connected to the right end of the folding and unfolding mechanism located on its left side, and the right end of the sub-skeleton is connected to the left end of the folding and unfolding mechanism located on its right side.

[0014] The foldable space garbage collector based on the launch vehicle as described above, wherein preferably, the folding and unfolding mechanism includes: a spring, an unfolding rope, a rotating guide hinge and a locking rope; wherein, both the left and right ends of the sub-skeleton have inwardly concave spring tubes; one end of a spring is fixedly mounted inside the spring tube of a sub-skeleton located at the left end, and the other end of the spring extends to the right and is connected to the right end of the unfolding rope; one end of another spring is fixedly mounted inside the spring tube of the opposite sub-skeleton located at the right end, and the other end of the spring extends to the left and is connected to the left end of the unfolding rope; the two ends of the rotating guide hinge are respectively connected to the spring tubes on both sides, and the unfolding rope passes through the middle of the rotating guide hinge; the two ends of the locking rope are respectively connected to the springs on both sides, and the middle part of the locking rope is connected to the shearing device of the upper stage of the launch vehicle.

[0015] As described above, the foldable space garbage collector based on the launch vehicle is preferably tightened, the spring is extended, and the rotary guide hinge is in a stable folded state, so that all the collector frames, folding and unfolding mechanisms and collector cloth surfaces are attached to the conical surface of the lower part of the upper stage.

[0016] As described above, the foldable space garbage collector based on the launch vehicle, wherein, preferably, the shearing device cuts the locking rope, the spring shortens and pulls the unfolding rope to tighten, and the rotary guide hinge moves along the guide direction to unfold, forming a circle with the sub-frame of the collector frame.

[0017] Compared with the above-mentioned background technology, the foldable space debris collector based on the launch vehicle of the present application can reduce the space and transportation capacity occupied by the aircraft for destroying space debris on the launch vehicle, and can reduce the generation of space debris and reduce the cost of space debris disposal. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1This is a schematic diagram of a foldable space garbage collector used by a launch vehicle in a folded state;

[0020] Figure 2 This is a schematic diagram of the foldable space garbage collector used by the launch vehicle in the unfolded state;

[0021] Figure 3 This is a schematic diagram of the folding and unfolding mechanism of a foldable space garbage collector used based on a launch vehicle. DETAILED DESCRIPTION

[0022] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be interpreted as limiting the present invention.

[0023] like Figure 1 and Figure 2 As shown, the present application provides a foldable space garbage collector based on a launch vehicle, comprising: a launch vehicle upper stage 110, multiple one-way rotating structures 120, multiple collector cloth surfaces 130, multiple collector frames 140 and multiple folding and unfolding mechanisms 150.

[0024] Among them, the launch vehicle upper stage 110 includes: an upper stage upper part 111 and an upper stage lower part 112; the upper stage upper part 111 has a cylindrical shape, and the upper stage lower part 112 has a conical shape. The lower end of the upper stage upper part 111 is connected to the upper end of the upper stage lower part 112, and the conical surface faces the upper stage upper part 111.

[0025] All the one-way rotating structures 120 are fixed at the junction of the upper part 111 of the upper stage and the lower part 112 of the upper stage, and are spaced apart from each other; the inner end of a recycler frame 140 is hinged to a one-way rotating structure 120, and the left and right ends of a folding and unfolding mechanism 150 are respectively connected to the outer ends of two adjacent one-way rotating structures 120, so that a folding and unfolding mechanism 150, two adjacent one-way rotating structures 120 and the corresponding positions of the junction of the upper part 111 of the upper stage and the lower part 112 of the upper stage form an arrangement frame; the edge of a recycler cloth 130 is fixedly connected to an arrangement frame, and each recycler cloth 130 is stacked between the arrangement frames.

[0026] like Figure 1As shown, each folding and unfolding mechanism 150 is shortened, so that the circle surrounded by all the folding and unfolding mechanisms 150 is reduced, so that all the recovering device frames 140 and the folding and unfolding mechanisms 150 are fitted to the conical surface of the lower part 112 of the upper stage, and then the recovering device cloth surface 130 is also fitted to the conical surface of the lower part 112 of the upper stage, thereby reducing the space occupied by the carrier rocket during launch.

[0027] like Figure 2 As shown, the launch vehicle upper stage 110 is equipped with remote sensing equipment, attitude and orbit control equipment and state change equipment. After the launch vehicle upper stage 110 completes its own mission, the remote sensing equipment receives ground instructions, and the state change equipment stretches each folding and unfolding mechanism 150, so that the circle surrounded by all folding and unfolding mechanisms 150 expands, and then all folding and unfolding mechanisms 150 are away from the conical surface of the lower part 112 of the upper stage, and all the recovery device frames 140 rotate around the one-way rotation structure 120 to make them perpendicular to the cylindrical surface of the upper part 111 of the upper stage, and the stacked recovery device cloth surface 130 is away from the conical surface of the lower part 112 of the upper stage, so that the arrangement frame and the recovery device cloth surface 130 form a circular net bag; the attitude and orbit control equipment adjusts its motion orbit to make it close to the location of the space debris to capture the space debris; after capturing a predetermined amount of space debris, the attitude and orbit control equipment adjusts its motion orbit to make the launch vehicle upper stage 110 carry the space debris and change orbit to complete the destruction by friction with the atmosphere.

[0028] Optionally, four one-way rotating structures 120 are evenly fixed at the junction of the upper part 111 of the upper stage and the lower part 112 of the upper stage, so that the foldable space garbage collector has four collector skeletons 140 and four collector cloths 130. In addition, the number of one-way rotating structures 120 and the collector skeleton 140 can be configured according to the shape and size of the conical surface to maintain stability after deployment. Optionally, the one-way rotating structure 120 has an auxiliary rotation force function, and the auxiliary rotation force can be provided by a spring, and the collector skeleton 140 is driven to rotate by the spring. Optionally, a fixing groove is provided in the one-way rotating structure 120, and the inner end of the collector skeleton 140 has a limiting protrusion. When the collector skeleton 140 rotates around the one-way rotating structure 120 until it is perpendicular to the cylindrical surface of the upper part 111 of the upper stage, the limiting protrusion is stuck in the fixing groove to fix the movement height of the collector skeleton 140 and keep the foldable space garbage collector in an unfolded state.

[0029] Also optionally, each recycler frame 140 includes: a main frame 141 and a sub-frame 142; the inner end of the main frame 141 is hinged to the one-way rotating structure 120, the outer end of the main frame 141 is vertically fixedly connected to the middle position of the sub-frame 142, the left end of the sub-frame 142 is connected to the right end of the folding and unfolding mechanism 150 located on its left side, and the right end of the sub-frame 142 is connected to the left end of the folding and unfolding mechanism 150 located on its right side. Optionally, the recycler frame 140 uses carbon fiber composite materials to increase strength while reducing weight. Still optionally, the recycler cloth 130 is Kevlar fiber cloth, whose firmness and tear resistance ensure the reliability of the space debris capture net bag, and the recycler cloth 130 is a non-metallic material, which has the characteristics of light weight, small space occupation, and low processing cost.

[0030] On the basis of the above, if Figure 3 As shown, the folding and unfolding mechanism 150 includes: a spring 151, an unfolding rope 152, a rotary guide hinge 153 and a locking rope 154; wherein, both left and right ends of the sub-frame 142 have inwardly concave spring barrels 1421; one end of a spring 151 is fixedly installed inside a spring barrel 154 at the left end of a sub-frame 142, and the other end of the spring 151 extends to the right and is connected to the right end of the unfolding rope 152; one end of another spring 151 is fixedly installed inside a spring barrel 154 at the right end of the opposite sub-frame 142, and the other end of the spring 151 extends to the left and is connected to the right end of the unfolding rope 152. The left end of the unfolding rope 152 is connected; the two ends of the rotating guide hinge 153 are respectively connected to the spring tubes 1421 on both sides, and the unfolding rope 152 passes through the middle of the rotating guide hinge 153; the two ends of the locking rope 154 are respectively connected to the springs 151 on both sides, and the spring 151 is tightened to make it in an extended state, and the state changing device of the launch vehicle upper stage 110 is a shearing device, and the middle part of the locking rope 154 is connected to the shearing device of the launch vehicle upper stage 110, and the locking rope 154 is cut by the shearing device, so that the spring 151 is shortened and the unfolding rope 152 is tightened.

[0031] In the folded state, the locking rope 154 tightens the spring 151, causing the spring 151 to stretch and its elastic force to reach a predetermined value. The locking rope 154 also places the rotary guide hinge 153 in a stable folded state, so that all the recoverer frames 140, the folding and unfolding mechanisms 150 and the recoverer cloth surface 130 are all attached to the conical surface of the lower part 112 of the upper stage.

[0032] When in the unfolded state, the shearing device receives an instruction to cut the locking rope 154, shorten the spring 151, and simultaneously pull the unfolding rope 152 to tighten, so that the swivel guide hinge 153 moves along the guide direction. Under the action of the spring 151, the swivel guide hinge 153 is pulled and unfolded into an arc state, forming a ring with the sub-skeleton 142 of the recycler skeleton 140, completing the unfolding action. Through the action of the elastic force of the spring 151, the unfolding time can be reduced and the adaptability can be improved.

[0033] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0034] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A foldable space garbage collector based on a launch vehicle, characterized in that: include: A launch vehicle upper stage, multiple one-way rotation structures, multiple recovery device cloth surfaces, multiple recovery device frames and multiple folding and unfolding mechanisms; The launch vehicle upper stage comprises: an upper stage upper part and an upper stage lower part; the upper stage upper part is cylindrical in shape, the lower stage lower part is conical in shape, the lower end of the upper stage upper part is connected to the upper end of the lower stage upper part, and the conical surface faces the upper stage upper part; All one-way rotating structures are fixed at the junction of the upper part of the upper stage and the lower part of the upper stage, and two adjacent one-way rotating structures are spaced apart; The inner end of a recycler frame is hinged to a one-way rotating structure, the left and right ends of a folding and unfolding mechanism are respectively connected to the outer ends of two adjacent one-way rotating structures, and the folding and unfolding mechanism and the two adjacent one-way rotating structures form an arrangement frame; The edges of a recycler cloth are fixedly connected to a deployment frame, and each recycler cloth is stacked between deployment frames.

2. The foldable space garbage collector based on a launch vehicle according to claim 1 is characterized in that: Each folding and unfolding mechanism is shortened, and the circle surrounded by all folding and unfolding mechanisms is reduced; All the recycler frames, folding and unfolding mechanisms and recycler cloth surfaces are attached to the conical surface at the lower part of the upper stage.

3. The foldable space garbage collector based on a launch vehicle according to claim 1 or 2, characterized in that: Each folding and unfolding mechanism is extended, and the circle surrounded by all folding and unfolding mechanisms is expanded; All folding and unfolding mechanisms are away from the conical surface at the bottom of the upper stage, all recovery device frames rotate around the one-way rotating structure to make them perpendicular to the cylindrical surface at the top of the upper stage, and the stacked recovery device cloth surfaces are away from the conical surface at the bottom of the upper stage, so that the arrangement frame and the recovery device cloth surfaces form a circular net bag.

4. The foldable space garbage collector based on a launch vehicle according to claim 1 or 2, characterized in that: Four one-way rotating structures are evenly fixed at the junction of the upper part of the upper stage and the lower part of the upper stage, and four recovery device frames are hinged to the four one-way rotating structures.

5. The foldable space garbage collector based on a launch vehicle according to claim 3 is characterized in that: The one-way rotating structure is provided with auxiliary rotating force by a spring, and the recovery device frame is driven to rotate by the spring.

6. The foldable space garbage collector based on a launch vehicle according to claim 3 is characterized in that: A fixing groove is arranged in the one-way rotating structure, and a limiting protrusion is arranged at the inner end of the recoverer frame. When the recoverer frame rotates around the one-way rotating structure until it is perpendicular to the cylindrical surface of the upper part of the upper stage, the limiting protrusion is inserted into the fixing groove.

7. The foldable space garbage collector based on a launch vehicle according to claim 1 or 2, characterized in that: Each recycler frame includes: a main frame and a secondary frame; The inner end of the main frame is hinged to the one-way rotating structure, the outer end of the main frame is vertically fixedly connected to the middle position of the auxiliary frame, the left end of the auxiliary frame is connected to the right end of the folding and unfolding mechanism located on its left side, and the right end of the auxiliary frame is connected to the left end of the folding and unfolding mechanism located on its right side.

8. The foldable space garbage collector based on a launch vehicle according to claim 7, characterized in that: The folding and unfolding mechanism comprises: a spring, an unfolding rope, a rotary guide hinge and a locking rope; Wherein, both left and right ends of the secondary frame have inwardly concave spring cylinders; One end of a spring is fixedly mounted inside a spring tube at the left end of a sub-frame, and the other end of the spring extends to the right and is connected to the right end of the deployment rope; one end of another spring is fixedly mounted inside a spring tube at the right end of the opposite sub-frame, and the other end of the spring extends to the left and is connected to the left end of the deployment rope; The two ends of the slewing guide hinge are respectively connected to the spring tubes on both sides, and the deployment rope passes through the middle of the slewing guide hinge; The two ends of the locking rope are respectively connected to the springs on both sides, and the middle part of the locking rope is connected to the shearing device of the upper stage of the launch vehicle.

9. The foldable space garbage collector based on a launch vehicle according to claim 8, characterized in that: The locking rope is tightened, the spring is extended, and the rotary guide hinge is in a stable folded state, so that all the recoverer frames, folding and unfolding mechanisms and recoverer cloth surfaces are attached to the conical surface of the lower part of the upper stage.

10. The foldable space garbage collector based on a launch vehicle according to claim 8, characterized in that: The shearing device cuts the locking rope, the spring shortens and pulls the unfolding rope tight, the rotary guide hinge moves and unfolds along the guide direction, and forms a circle with the sub-frame of the recycler frame.

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