A rope net launcher with integrated launch pipe net warehouse

Abstract

The present invention belongs to the field of space debris cleaning, and specifically relates to a rope net launcher with an integrated launch tube, net and warehouse. It includes an integrated launcher body, a traction body, a bottom cover, an igniter and a traction rope; the integrated launcher body is a single-leaf hyperboloid structure, including a lower bottom and a side wall in the form of a single-leaf hyperboloid, the lower bottom is equipped with a bottom cover to form a launch cavity, a plurality of launch tubes are evenly arranged circumferentially along the hyperbolic direction on the single-leaf hyperboloid side wall, the bottoms of the plurality of launch tubes realize a common cavity through the launch cavity at the bottom, and an igniter is arranged on the bottom cover; the traction body is arranged in the launch tube, the traction body is connected to the rope net through a traction rope, and the rope net is arranged in the central cavity of the integrated launcher body. The present invention uses a single-leaf hyperboloid structure as the basic frame of the launcher, on which a plurality of launch tubes are evenly distributed, which can effectively increase the capacity of the warehouse, improve the space utilization rate, and effectively improve the stability of the rope net launch.

Description

Technical Field

[0001] The invention belongs to the field of space debris cleaning, and in particular relates to a rope net launcher with an integrated launch tube network warehouse. Background Art

[0002] With the increasing number of human space activities, more and more aging spacecraft and a large number of debris caused by collisions are stranded in space, which not only occupies precious space orbital resources, but also threatens the safety of other satellites in orbit. At the same time, it also greatly affects the smooth implementation of subsequent space launch missions. Therefore, carrying out space debris cleaning tasks has become a consensus among major space powers. In the field of space debris cleaning, space flexible rope net capture deorbit is a new cleaning technology. This technology launches a flexible rope net, which is deployed and captures space debris during flight, and then completes the cleaning task under the towing of the platform.

[0003] In order to enable the rope net to be spread out over a larger area after being launched, the previous rope net launching scheme had a certain launching angle between the launching tube and the central axis, making the launcher look conical, causing the net warehouse space in the middle to also be conical; and the net warehouse and the launching tube were separated from each other, resulting in a large number of parts making up the launcher.

[0004] However, this solution has the following problems:

[0005] 1. Under the same envelope size constraint, the conical net warehouse has a small volume and cannot deploy large rope nets to capture large space debris, so the space utilization rate is low.

[0006] 2. Each launch tube and net warehouse needs to cooperate with the launcher, which increases the number of parts that make up the launcher, and then leads to an increase in the cumulative processing and installation errors. At the same time, it is also difficult to ensure the high air tightness and sufficient strength requirements of the launcher. Summary of the invention

[0007] The purpose of the present invention is to provide a rope net launcher structure suitable for capturing space debris. A single-leaf hyperboloid structure is used as the basic frame of the launcher, and a number of launch tubes are evenly distributed on it, which can effectively increase the capacity of the net warehouse and improve space utilization; it can effectively reduce the number of parts, reduce processing and installation errors, and reduce the weight of the launcher; the launcher is integrated into an integrated shape, which increases the strength of the launcher and effectively improves the stability of the rope net launch.

[0008] The technical solution to achieve the purpose of the present invention is: a rope net launcher with an integrated launch tube net warehouse, comprising an integrated launcher body, a traction body, a bottom cover, an igniter and a traction rope;

[0009] The integrated launcher body is a single-leaf hyperboloid structure, including a lower bottom and a side wall in the form of a single-leaf hyperboloid, the lower bottom is provided with a bottom cover to form a launch cavity, a plurality of launch tubes are evenly arranged in the circumferential direction of the hyperboloid direction on the side wall of the single-leaf hyperboloid, the bottoms of the plurality of launch tubes realize a common cavity through the launch cavity at the bottom, and an igniter is provided on the bottom cover;

[0010] The traction body is arranged in the launching tube, the traction body is connected to the rope net through the traction rope, and the rope net is arranged in the central cavity of the integrated launcher body.

[0011] Furthermore, the initial launch velocity and launch angle of the traction body are determined according to the target to be captured. The launch angle of the traction body is the launch tube inclination angle. The single-leaf hyperboloid structure of the integrated launcher body is determined according to the launch tube inclination angle.

[0012] Furthermore, the inclination angle of the launch tube is 15° to 50°.

[0013] Furthermore, the launch tube includes a containing area and an air escape area arranged below the containing area, the traction body is arranged in the containing area, the inner diameter of the containing area is 1.1 to 1.2 times the diameter of the traction body, the inner diameter of the air escape area is 0.5 to 0.7 times the inner diameter of the containing area, and the length of the air escape area is 1 to 2 times the length of the containing area.

[0014] Furthermore, it also includes a stopper and a piston;

[0015] The piston, traction body and blocking cover are placed into the launching tube in sequence.

[0016] Furthermore, the lower bottom of the integrated launcher body adopts a middle arc-shaped thickened structure that is thick in the middle and thin at the edges.

[0017] Further, the igniter is screwed into the bottom cover through threads.

[0018] Furthermore, weight-reducing holes that are consistent with the inclination angle of the launch tubes are provided between the launch tubes on the single-blade hyperbolic side wall, and weight-reducing holes are provided on the baffle cover.

[0019] Furthermore, one end of the traction rope is fixed to the bottom of the traction body by bolts. A threaded hole is opened at the bottom of the traction body. The other end of the traction rope passes through the guide groove of the traction body in sequence, and passes through the weight-reducing hole of the baffle cover, and is finally connected to the rope net body.

[0020] Furthermore, the bottom cover is connected to the lower bottom of the integrated transmitter body by threads.

[0021] Compared with the prior art, the present invention has the following significant advantages:

[0022] (1) The integrated launch device designed in the present invention can accommodate a larger rope net under the same envelope size constraint, and has the advantage of a larger available volume compared to the traditional rope net launcher;

[0023] (2) The integrated launching device designed in the present invention combines the launching tube and the net bin into one part, and has a single-leaf hyperboloid structure in appearance. Compared with the traditional rope net launcher, it has the advantages of high integration and modularization, light weight and high strength. The cavity also has a single-leaf hyperboloid configuration, which can better fit the net bag envelope. Compared with the traditional rope net launcher, it has better self-locking effect and high space utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The present invention is a launching tube net warehouse integrated rope net launcher and assembly schematic diagram; wherein (a) is an overall schematic diagram, and (b) is an assembly schematic diagram.

[0025] Figure 2 It is a schematic diagram of the common cavity emission cavity and the arc-shaped thickened wall of the emitter of the present invention.

[0026] Figure 3 It is a schematic diagram of the connection method between the traction rope and the traction body of the present invention.

[0027] Figure 4 Part of the parameter relationship of the integrated transmitting device of the present invention.

[0028] 1-integrated launcher body, 2-blocking cover, 3-traction body, 4-piston, 5-bottom cover, 6-igniter, 7-traction rope. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0030] like Figure 1-4 As shown, a rope net launcher with an integrated launch tube and net warehouse includes an integrated launcher body 1, a bottom cover 5, an igniter 6, a baffle 2, a traction body 3, and a piston 4. The bottom cover 5 is fixed to the bottom of the integrated launcher body 1 by threaded connection, the igniter 6 is screwed into the bottom cover 5 by threads, the piston 4, the traction body 3, and the baffle 2 are sequentially placed in the launch tube of the integrated launcher body, and the net bag is deployed in the cavity of the integrated launch device and fixed by the bottom tether.

[0031] The main body of the integrated launcher has a single-leaf hyperbolic structure, which makes its cavity area "thicker at both ends and narrower in the middle", which is consistent with the envelope characteristics of the folded rope net.

[0032] The launching tubes are evenly distributed on the outer wall. The design idea for determining the inclination angle of the launching tubes is as follows: determine the size of the rope net according to the distance and size of the non-cooperative target, and further determine the launching conditions and the amount of gunpowder, where the launching conditions include the initial velocity and the launching angle of the traction body; the inclination angle of the launching tube is the launching angle of the traction body, and the inclination angle range of the launching tube is generally 15° to 50°; according to the inclination angle of the launching tube, further determine the inclination angle of the net warehouse to form an integrated launching device.

[0033] After determining the launch tube inclination angle, it is necessary to determine the launch tube size. The launch tube can be divided into a containing area and a gas passage area. The main function of the containing area is to contain parts such as the baffle 2, the traction body 3, and the piston 4, and the main function of the gas passage area is to transport high-pressure gas. The inner diameter of the containing area is determined by the size of the traction body. The inner diameter of the containing area is 1.1 to 1.2 times the diameter of the traction body, and the inner diameter of the gas passage area is 0.5 to 0.7 times the inner diameter of the containing area. The length of the containing area is determined by the height of the baffle 2, the traction body 3, and the piston 4. It is necessary to ensure that the traction body 3 and the piston 4 do not undergo axial displacement in the containing area before launch. The length of the gas passage area is 1 to 2 times the length of the containing area. Specifically, Figure 4 The inner diameter d1 of the launch tube accommodation area shown is 1.1 to 1.2 times the diameter of the traction body, and the inner diameter d2 of the gas escape area is ≈ 0.5 to 0.7d1; the length h1 of the accommodation area is determined by the height of the baffle, the traction body, and the piston. It is necessary to ensure that the traction body and the piston do not undergo axial displacement in the accommodation area before launch. The length h2 of the gas escape area is ≈ 1 to 2h1.

[0034] The wall surface of the integrated launcher body 1 is provided with weight-reducing holes, which can reduce the weight of the launcher and improve the structural strength of the launcher.

[0035] The bottom of the integrated launcher body 1 is arc-shaped and thickened to withstand higher chamber pressure. Figure 2 illustrate.

[0036] The number of baffles 2, traction bodies 3, and pistons 4 is the same as the number of launch tubes. The pistons 4, traction bodies 3, and baffles 2 are placed into the launch tubes in this order, and the baffles 2 placed last are fixed to the integrated launcher body 1 through threads.

[0037] The net bag is placed in the cavity of the integrated launcher body 1 and fixed by the bottom tether, and the traction rope 7 is connected to the traction body 3 respectively. When launching, the rope net is pulled out under the drive of the traction body. Figure 3 As shown: one end of the traction rope 7 is fixed to the bottom of the traction body 3 by a bolt. A threaded hole is opened at the bottom of the traction body 3. The other end passes through the guide groove of the traction body 3 in sequence, and passes through the weight-reducing hole of the baffle 1, and is finally connected to the rope net body.

[0038] A method for launching a rope net using the above-mentioned rope net launcher with integrated launching pipe net warehouse comprises the following steps:

[0039] Step (1): deploying the net bag into the cavity area of ​​the integrated transmitter body 1;

[0040] Step (2): fix the traction rope 7 of the rope net to the bottom of the traction body 3, and put the piston 4, the traction body 3, and the blocking cover 2 into the launch tube of the integrated launcher body 1 in the order;

[0041] Step (3): After deploying gunpowder on the bottom cover 5, it is fixed to the bottom of the integrated launcher body through threaded connection;

[0042] Step (4): embed the igniter 6 into the bottom cover 5 through threaded connection;

[0043] Step (5): fix the launcher to the mother satellite platform through the flange of the integrated launcher body 1;

[0044] Step (6): The mother satellite platform supplies power to the igniter 6 to launch the rope net, thus completing the rope net launching task.

Claims

1. A rope net launcher with an integrated launch pipe net warehouse, characterized in that: It comprises an integrated launcher body (1), a traction body (3), a bottom cover (5), an igniter (6) and a traction rope (7); The integrated launcher body (1) is a single-leaf hyperboloid structure, comprising a lower bottom and a side wall in the form of a single-leaf hyperboloid, the lower bottom being provided with a bottom cover (5) to form a launch cavity, a plurality of launch tubes being evenly arranged in a circumferential direction along the hyperboloid direction on the side wall of the single-leaf hyperboloid, the bottoms of the plurality of launch tubes being connected to a common cavity through the launch cavity at the bottom, and an igniter (6) being provided on the bottom cover (5); The traction body (3) is arranged in the launch tube, the traction body (3) is connected to the rope net via a traction rope (7), and the rope net is arranged in the central cavity of the integrated launcher body (1); The initial launch velocity and launch angle of the traction body are determined according to the target to be captured. The launch angle of the traction body is the launch tube inclination angle. The single-leaf hyperboloid structure of the integrated launcher body is determined according to the launch tube inclination angle. The launch tube comprises a containing area and an air escape area arranged below the containing area, the traction body (3) is arranged in the containing area, the inner diameter of the containing area is 1.1 to 1.2 times the diameter of the traction body, the inner diameter of the air escape area is 0.5 to 0.7 times the inner diameter of the containing area, and the length of the air escape area is 1 to 2 times the length of the containing area; It also includes a stopper (2) and a piston (4); The piston (4), the traction body (3) and the blocking cover (2) are sequentially placed into the launch tube; The bottom of the integrated launcher body adopts a middle arc-shaped thickened structure with thick middle and thin edges; The igniter (6) is screwed into the bottom cover (5) through threads; A weight-reducing hole having the same inclination angle as the launch tube is provided between the launch tubes on the side wall of the single-blade hyperboloid, and a weight-reducing hole is provided on the blocking cover (2); One end of the traction rope (7) is fixed to the bottom of the traction body (3) by means of a bolt. A threaded hole is provided at the bottom of the traction body (3). The other end of the traction rope (7) passes through the guide groove of the traction body (3) in sequence and passes through the weight-reducing hole of the baffle (2) to finally be connected to the rope net body. The bottom cover (5) is connected to the bottom of the integrated transmitter body (1) via threads.

2. The rope net launcher according to claim 1, characterized in that: The launch tube inclination angle is 15°~50°.

Images