A multi-satellite stacked satellite unlocking and distributing device

Abstract

This application relates to the technical field of satellite unlocking, and particularly to a multi-satellite stacked satellite unlocking distributor, comprising: a base, a tensioning device, an unlocking device, a separation boosting device, a satellite stacking group, and a tensioning device recovery mechanism; the base includes: an upper plate and a base fixedly connected to the lower surface of the upper plate; the separation boosting device is installed in the separation boosting device installation hole, and the separation boosting device includes: a separation seat, a separation spring, a push rod, and a separation pin extractor; the tensioning device includes: two pull rods, a connecting rod, and two pre-tightening nuts; the unlocking device includes: two sleeves, a rotating shaft, two unlocking pin extractors, two shaft seats, a transmission device, and a driving device. After the multi-satellite stacked satellite unlocking distributor of this application is unlocked, the pull rods of the tensioning device rotate to the rear and continue to fly with the rocket, thus avoiding the generation of redundant detachment objects during separation and unlocking, and ensuring the cleanliness and safety of the high orbit.

Description

Technical Field

[0001] This application relates to the technical field of satellite unlocking, and particularly to a multi-star stacked satellite unlocking distributor. Background Art

[0002] The satellite unlocking and separation technology is a key technology for the successful launch of a satellite and its operation in a predetermined orbit. After the separation of multiple satellites launched by a single rocket, it is necessary to control the separation attitude of the satellites to prevent collisions between the satellites. At the same time, since the separation process of the satellites is in space, the parts that fall off after separation will become permanent space debris.

[0003] Currently, for the multi-star stacked satellite unlocking distributors in the prior art, although they can meet the requirements of multiple satellites launched by a single rocket, collisions will occur between the satellites during unlocking, and the risk of satellite damage is relatively high. At the same time, the pull rod will remain in space after unlocking, threatening the flight safety of the spacecraft.

[0004] Therefore, how to avoid the generation of redundant detached objects during the separation of the multi-star stacked satellite unlocking distributor is a technical problem that needs to be solved by those skilled in the art currently. Summary of the Invention

[0005] This application provides a multi-star stacked satellite unlocking distributor to avoid the generation of redundant detached objects during the separation of the multi-star stacked satellite unlocking distributor.

[0006] To solve the above technical problems, this application provides the following technical solutions:

[0007] A multi-satellite stacked satellite unlocking and distributing device, comprising: a base, a tensioning device, an unlocking device, a separation boosting device, a satellite stacking group, and a tensioning device recovery mechanism; the base includes: an upper plate and a base fixed to the lower surface of the upper plate; a plurality of positioning sleeve mounting holes penetrating up and down are provided at positions near the edge of the upper plate, and each positioning sleeve mounting hole is provided with two rod mounting holes penetrating through the upper plate and opening outward, and these two rod mounting holes are distributed on both sides of the positioning sleeve mounting hole matching with them. The upper surface of the upper plate has a downward concave separation boosting device mounting hole; the outer surface of the lower end of the base has a recovery groove extending up and down, and the tensioning device recovery mechanism is installed in the recovery groove; the separation boosting device is installed in the separation boosting device mounting hole, and the separation boosting device includes: a separation seat, a separation spring, a push rod, and a separation pin extractor; the separation seat has a push rod matching hole with an opening facing upward, the separation spring is sleeved on the push rod, the lower end of the push rod is inserted into the push rod matching hole, and the push rod is slidably matched with the separation seat. The lower end of the push rod has a radially extending locking hole, the separation seat has a separation pin extractor insertion hole penetrating inside and outside, and the pin of the separation pin extractor is inserted into the separation pin extractor insertion hole from the outside and extends into the locking hole of the push rod; at the edge position of each satellite in the satellite stacking group, there are a plurality of positioning sleeves penetrating up and down, and the positioning sleeve of the satellite located in the upper layer is inserted into the positioning sleeve of the satellite located in the lower layer, and the positioning sleeve of the satellite located at the bottom layer is inserted into the positioning sleeve mounting hole of the upper plate; the tensioning device includes: two rods, a connecting rod, and two pre-tightening nuts; the connecting rod has two connecting holes penetrating up and down, the upper end of the rod passes through the connecting hole on the connecting rod and is fixed to the predetermined nut, and the connecting rod is pressed against the positioning sleeve of the top-layer satellite; the unlocking device includes: two sleeves, a rotating shaft, two unlocking pin extractors, two shaft seats, a transmission device, and a driving device; the upper end of the shaft seat is fixed to the lower surface of the upper plate, the rotating shaft is fixed to the outside of the sleeve, and the rotating shaft is rotatably connected to the shaft seat; the lower end of the rod passes through the rod mounting hole on the upper plate and then extends into the sleeve, and the lower end of the rod is slidably matched with the sleeve; the lower end of the rod has a radially extending locking hole, and there is an unlocking pin extractor insertion hole penetrating inside and outside on the side wall of the sleeve. The pin of the unlocking pin extractor is inserted into the unlocking pin extractor insertion hole from the outside and extends into the locking hole of the rod; the rotating shaft is connected to the driving device through the transmission device. After the pin of the unlocking pin extractor extends out of the locking hole of the rod, the rod is released from the restriction, slides upward in the sleeve, the driving device drives the rotating shaft to rotate through the transmission device, drives the sleeve and the rod to rotate so that the rod is clamped into the recovery groove of the base, and the rod is restricted by the tensioning device recovery mechanism.

[0008] The multi-satellite stacked satellite unlocking and distributing device as described above, wherein, preferably, the upper plate is a square plate, and positioning sleeve mounting holes are provided at the four corners of the square plate, and rod mounting holes are provided at the four corners of the square plate.

[0009] The multi-star stacked satellite unlocking distributor as described above, wherein, preferably, the tensioning device recovery mechanism includes: a locking steel ball and a locking spring. The side wall of the recovery groove has a concave locking hole. The locking spring and the locking steel ball are both located in the locking hole. The inner end of the locking spring contacts the bottom of the locking hole. The outer end of the locking spring contacts the surface of the locking steel ball. And the diameter of the locking steel ball is greater than the diameter of the port of the locking hole.

[0010] The multi-star stacked satellite unlocking distributor as described above, wherein, preferably, the tensioning device further includes: a connecting clamp; the connecting clamp is connected between two pull rods.

[0011] The multi-star stacked satellite unlocking distributor as described above, wherein, preferably, a transmission sprocket is provided on the rotating shaft. The transmission device is a transmission chain. The driving device is a servo motor. The transmission chain cooperates with the transmission sprocket and the sprocket on the output shaft of the servo motor.

[0012] The multi-star stacked satellite unlocking distributor as described above, wherein, preferably, the side wall of the separation seat has a radially extending positioning wing. The upper end of the ejector rod has a radially extending positioning wing. The separation spring is sleeved on the ejector rod and is located between the positioning wing of the separation seat and the positioning wing of the ejector rod.

[0013] The multi-star stacked satellite unlocking distributor as described above, wherein, preferably, a plurality of left-side satellites are stacked on the left half of the upper plate, and a plurality of right-side satellites are stacked on the right half of the upper plate.

[0014] The multi-star stacked satellite unlocking distributor as described above, wherein, preferably, a boosting spring is provided between the positioning sleeve of the satellite located in the upper layer and the positioning sleeve of the satellite located in the lower layer.

[0015] The multi-star stacked satellite unlocking distributor as described above, wherein, preferably, the lower end of the boosting spring is fixed to the positioning sleeve of the satellite in the lower layer.

[0016] The multi-star stacked satellite unlocking distributor as described above, wherein, preferably, the lower end of the boosting spring is fixed to the positioning sleeve of the satellite in the lower layer through a positioning pin.

[0017] Compared with the above background art, after the multi-star stacked satellite unlocking distributor of the present application is unlocked, the pull rod of the tensioning device rotates to the rear and continues to fly with the rocket, thus avoiding the generation of redundant separation objects during separation and unlocking, ensuring the cleanliness and safety of the high orbit. At the same time, springs are installed between the satellites to ensure the safety of the near-field separation of the satellites. Description of the Drawings

[0018] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments recorded in the present application. For those of ordinary skill in the art, other accompanying drawings can also be obtained based on these drawings.

[0019] Figure 1 is a perspective view of a multi-star stacked satellite unlocking and distributing device provided by an embodiment of the present application;

[0020] Figure 2 is a perspective view of the base of the multi-star stacked satellite unlocking and distributing device provided by an embodiment of the present application;

[0021] Figure 3 is a partial schematic view of the base of the multi-star stacked satellite unlocking and distributing device provided by an embodiment of the present application;

[0022] Figure 4 is a perspective view of the tensioning device of the multi-star stacked satellite unlocking and distributing device provided by an embodiment of the present application;

[0023] Figure 5 is a perspective view of the unlocking device of the multi-star stacked satellite unlocking and distributing device provided by an embodiment of the present application;

[0024] Figure 6 is a schematic view of the separation boost device of the multi-star stacked satellite unlocking and distributing device provided by an embodiment of the present application;

[0025] Figure 7 is a schematic view of a satellite of the satellite stack group of the multi-star stacked satellite unlocking and distributing device provided by an embodiment of the present application;

[0026] Figure 8 is a stacking schematic view of the satellite stack group of the multi-star stacked satellite unlocking and distributing device provided by an embodiment of the present application. Detailed implementation manners

[0027] The following details the embodiments of the present application. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be construed as a limitation of the present application.

[0028] As Figure 1 shown, the present application provides a multi-star stacked satellite unlocking and distributing device, including: a base 110, a tensioning device 120, an unlocking device 130, a separation boost device 140, a satellite stack group 150, and a tensioning device recovery mechanism 160.

[0029] Among them, as Figure 2As shown in the figure, the base 110 includes: an upper plate 111 and a base 112. The upper plate 111 is used for fixedly connecting with the satellite stacking group 150, and the base 112 is used for fixedly connecting with the rocket inside the fairing of the rocket.

[0030] At positions near the edge of the upper plate 111, a plurality of positioning sleeve mounting holes 1111 that penetrate up and down are provided for inserting the positioning sleeves of the bottom-layer satellites of the satellite stacking group 150; each positioning sleeve mounting hole 1111 is configured with two pull rod mounting holes 1112 that penetrate the upper plate 111 up and down, and these two pull rod mounting holes 1112 are distributed on both sides of the positioning sleeve mounting hole 1111 they are matched with, and these two pull rod mounting holes 1112 both open outward to snap in the pull rods of the tensioning device 120 from the openings and ensure the outward rotation of the pull rods of the tensioning device 120; the upper surface of the upper plate 111 has a downward concave separation boost device mounting hole 1113 for mounting the separation boost device 140.

[0031] Optionally, the upper plate 111 is a square plate, and positioning sleeve mounting holes 1111 are provided at the four corners of the square plate. Still optionally, pull rod mounting holes 1112 are provided at the four corners of the square plate. Also optionally, the separation boost device mounting hole 1113 is provided at the middle position of the upper surface of the upper plate 111. Additionally optionally, the separation boost device mounting hole 1113 includes: a separation boost hole and a pull pin hole. The pull pin hole is communicated with the separation boost hole, and a separation seat, a separation spring and a push rod of the separation boost device are installed in the separation boost hole, and a separation memory alloy pull pin device of the separation boost device is installed in the pull pin hole. Still optionally, the separation boost hole is a cylindrical hole, and the pull pin hole is a cuboid-shaped hole.

[0032] The upper end of the base 112 is fixedly connected to the lower surface of the upper plate 111, and the lower end of the base 112 is used for fixedly connecting with the rocket. Optionally, the base 112 and the upper plate 111 are of an integrally formed structure. Still optionally, the size of the upper end of the base 112 is smaller than the size of the upper plate 111 to facilitate the installation of the pull rods of the tensioning device 120 and the unlocking device 130; the size of the lower end of the base 112 is larger than the size of the upper end of the base 112 to ensure the stable fixed connection between the base 112 and the rocket. Additionally optionally, the lower end of the base 112 has an upward concave mounting groove from bottom to top to be butt-jointed and fixedly connected with the protruding part of the rocket. Still optionally, the shape of the horizontal cross-section of the lower end of the base 112 is circular to adapt to the shape of the fairing of the rocket.

[0033] As Figure 3As shown, the outer surface of the lower end of the base 112 has a recycling groove 1121 extending vertically. The tension device recycling mechanism 160 is installed in the recycling groove 1121, and the recycling groove 1121 corresponds to the pull rod of the tension device 120. After the separation action of the tension device 120 is completed, the pull rod of the tension device 120 rotates and is caught in the recycling groove 1121, and the tension device recycling mechanism 160 restricts the pull rod of the tension device 120, thereby realizing the positioning and recycling function of the tension device 120 after separation. Optionally, the tension device recycling mechanism 160 includes: a locking steel ball and a locking spring. The side wall of the recycling groove 1121 has a concave locking hole. The locking spring and the locking steel ball are both located in the locking hole. The inner end of the locking spring contacts the bottom of the locking hole, and the outer end of the locking spring contacts the surface of the locking steel ball. The diameter of the locking steel ball is larger than the diameter of the port of the locking hole, so that most of the locking steel ball is restricted in the locking hole, and only a small part of the locking steel ball extends outside the locking hole. In this way, when the pull rod of the tension device 120 rotates to the recycling groove 1121, the pull rod of the tension device 120 hits the part of the locking steel ball extending out of the locking hole, thereby squeezing all of the locking steel ball into the locking hole. The pull rod of the tension device 120 continues to be caught in the recycling groove 1121. As the pull rod of the tension device 120 continues to be caught in the recycling groove 1121, the locking steel ball that has been completely squeezed into the locking hole gradually extends out of the locking hole under the action of the locking spring, thereby completely restricting the pull rod of the tension device 120 in the recycling groove 1211, and thus realizing the positioning and recycling operation of the tension device 120 after separation. Optionally, the side wall of the recycling groove 1121 has two opposite locking holes, and each locking hole is provided with a locking spring and a locking steel ball.

[0034] As Figure 4As shown, the tensioning device 120 includes: two tie rods 121, a connecting rod 122, and two pre-tightening nuts 123; the connecting rod 122 has two through holes extending up and down for passing through the upper ends of the tie rods 121; the upper ends of the tie rods 121 pass through the connecting holes on the connecting rod 122 and are fixedly connected to the predetermined nuts 123, and the connecting rod 122 is pressed against the positioning sleeve of the top satellite of the satellite stack group 150, thereby restricting the upper end of the satellite stack group 150. The lower ends of the tie rods 121 extend into the sleeve 131 of the unlocking device 130 after passing through the tie rod mounting holes 1112 on the upper plate 111, and the lower ends of the tie rods 121 are slidably mated with the sleeve 131; in addition, the lower ends of the tie rods 121 have locking holes extending radially for engaging the pins of the unlocking puller 133 of the unlocking device 130 to lock the tie rods 121. During unlocking, the pins of the unlocking puller 133 of the unlocking device 130 retract from the locking holes of the tie rods 121, thereby releasing the restriction on the tie rods 121, and the tie rods 121 slide upward by a certain distance relative to the sleeve 131 of the unlocking device 130. In this case, the tie rods 121 can rotate, thereby releasing the restriction on the satellite stack group 150.

[0035] Optionally, there are four sets of tensioning devices 120 in this application to cooperate with the four sets of tie rod mounting holes 1112 on the upper plate 111. Still optionally, the tensioning device 120 further includes: a connecting clamp 124, and the connecting clamp 124 is connected between the two tie rods 121 to avoid structural instability caused by the excessive height of the satellite stack group 150 and the excessive length of the tie rods 121. Still optionally, the connecting clamp 124 is arc-shaped to adapt to the positioning sleeve on the satellite stack group 150. Also optionally, the upper end opening of the sleeve 131 has a radially inward extending limiting wing, and the lower end of the tie rod 121 has a radially outward extending limiting wing. Through the cooperation of the limiting wing of the sleeve 131 and the limiting wing of the tie rod 121, the lower end of the tie rod 121 is restricted within the sleeve 131.

[0036] As Figure 5As shown, the unlocking device 130 includes: two sleeves 131, a rotating shaft 132, two unlocking pin extractors 133, two shaft seats 134, a transmission device 135, and a driving device 136. Among them, the upper end of the sleeve 131 is open to extend into the lower end of the pull rod 121 of the tensioning device 120; there is an unlocking pin extractor insertion hole penetrating the inside and outside on the side wall of the sleeve 131, and the pin of the unlocking pin extractor 133 is inserted from the outside into the unlocking pin extractor insertion hole and extends into the locking hole of the pull rod 121, thereby locking the pull rod 121. When unlocking is required, the pin of the unlocking pin extractor 133 extends out of the locking hole of the pull rod 121, and the lower end of the pull rod 121 is released from the restriction in the sleeve 131. In addition, the upper end of the shaft seat 134 is fixed to the lower surface of the upper plate 111 of the base 110, the rotating shaft 132 is fixed to the outside of the sleeve 131, and the rotating shaft 132 is rotatably connected to the shaft seat 134, thereby restricting the lower end of the pull rod 121. In addition, the rotating shaft 132 is connected to the driving device 136 through the transmission device 135. Therefore, after the lower end of the pull rod 121 is released from the restriction, the driving device 136 drives the rotating shaft 132 to rotate through the transmission device 135, thereby driving the sleeve 131 and the pull rod 121 to rotate, so that the pull rod 121 can be rotated into the recovery groove 1121 of the base 112, avoiding the generation of redundant detachment objects during the separation of the satellite stack group 150.

[0037] Optionally, a transmission sprocket 137 is provided on the rotating shaft 132, the transmission device 135 is a transmission chain, the driving device 136 is a servo motor, and the transmission chain is engaged with the transmission sprocket 137 and the sprocket on the output shaft of the servo motor. Alternatively, a pulley is provided on the rotating shaft 132, the transmission device 135 is a transmission belt, the driving device 136 is a servo motor, and the transmission belt is engaged with the pulley and the pulley on the output shaft of the servo motor. Additionally, the transmission sprocket 137 or the pulley is located at the middle position of the rotating shaft 132.

[0038] As Figure 6As shown, the separation boost device 140 is installed in the separation boost device installation hole 1113 of the upper plate 111. Moreover, the separation boost device 140 includes: a separation seat 141, a separation spring 142, a push rod 143, and a separation pin extractor 144; the separation seat 141 has a push rod mating hole with an opening facing upward, the separation spring 142 is sleeved on the push rod 143, the lower end of the push rod 143 is inserted into the push rod mating hole, and the push rod 143 is in sliding fit with the separation seat 143. When the satellite stack group 150 is not separated, the push rod 143 is inserted and slides below the push rod mating hole, and the separation spring 142 is compressed. When the satellite stack group 150 is separated, the push rod 143 slides above the push rod mating hole, and the separation spring 142 is still compressed or returns to its natural state. Additionally, the lower end of the push rod 143 has a locking hole extending radially, the separation seat 141 has a separation pin extractor insertion hole penetrating inside and outside, and the pin of the separation pin extractor 144 is inserted from the outside into the separation pin extractor insertion hole and extends into the locking hole of the push rod 143 to lock the push rod 143. When the satellite stack group 150 needs to be separated, the pin of the separation pin extractor 144 is pulled out from the locking hole of the push rod 143, and the push rod 143 slides upward from the push rod mating hole of the separation seat 141 under the thrust of the separation spring 142, that is, the satellite stack group 150 is separated from the upper plate 111 of the machine base 110 by the push rod 143.

[0039] Optionally, the side wall of the separation seat 141 has a radially extending positioning wing 1411, the upper end of the push rod 143 has a radially extending positioning wing 1431, the separation spring 142 is sleeved on the push rod 143 and is located between the positioning wing 1411 of the separation seat 141 and the positioning wing 1431 of the push rod 143. Also optionally, since the separation pin extractor 144 is located radially of the separation seat 141, the separation pin extractor 144 is installed in the pin extraction hole of the separation boost device installation hole 1113, and the separation seat 141, the separation spring 142, and the push rod 143 are installed in the separation boost hole of the separation boost device installation hole 1113.

[0040] As Figure 7As shown, the satellite stack group 150 is composed of a plurality of (e.g., 18) satellites 151 stacked together. Each satellite 151 adopts a modular design, that is, there are a plurality of positioning sleeves 1511 penetrating up and down at the edge position of each satellite 151. And, the positioning sleeves 1511 of the satellite 151 located in the upper layer are inserted into the positioning sleeves 1511 of the satellite 151 located in the lower layer, and the positioning sleeves 1511 of the satellite 151 located at the bottom layer are inserted into the positioning sleeve mounting holes 1111 of the upper plate 111. Thus, it is convenient to stack a plurality of modular-designed satellites 151 on the upper plate 111 to form the satellite stack group 150. Just because a plurality of satellites 151 can be stacked and launched, the efficiency of satellite launch is improved, the cost of satellite launch is reduced, and also because a plurality of satellites 151 can be stacked, the space occupied by satellite installation can be reduced, thus making full use of the space inside the rocket fairing. In addition, there is a groove on the positioning sleeve 151 of the satellite 151 located at the top layer to snap in the connecting rod 122, so that the pressing of the connecting rod 122 on the satellite 150 is more reliable.

[0041] Optionally, a plurality of left-side satellites are stacked on the left half of the upper plate 111, and a plurality of right-side satellites are stacked on the right half of the upper plate 111. Also optionally, the shape of the satellite 151 is a cuboid, so that the left-side satellites and the right-side satellites are combined to form a satellite stack group 150 with a square horizontal cross-section. Also optionally, there is a long positioning sleeve at the long side position of the satellite 151 facing outward, and a short positioning sleeve at each short side position of the satellite 151 facing outward. Still optionally, the long side of the satellite 151 facing inward (i.e., facing another satellite 151) can extend to the axis of the short positioning sleeve at the short side position of the satellite 151, so that the short positioning sleeve at the short side position of the left-side satellite can be inserted into the short positioning sleeve at the short side position of the right-side satellite, and the short positioning sleeve at the short side position of the right-side satellite can be inserted into the short positioning sleeve at the short side position of the left-side satellite. Thus, the left-side satellites and the right-side satellites can be alternately stacked on the upper plate 111. Also optionally, the length of the long positioning sleeve is twice the length of the short positioning sleeve. Also optionally, each layer of the satellite stack group 150 has one left-side satellite and one right-side satellite.

[0042] As Figure 8As shown, a booster spring 152 is provided between the positioning sleeves 1511 of the satellites 151 in the upper layer and the positioning sleeves 1511 of the satellites 151 in the lower layer. Thus, when the satellites 151 in the satellite stack group 150 are separated, not only can the elastic force of the booster spring 152 be released to push the satellites 151 in each layer to separate, but also collisions between the satellites 151 during separation can be effectively prevented. Optionally, the lower end of the booster spring 152 is fixed to the positioning sleeve 1511 of the satellite 151 in the lower layer. Also optionally, the lower end of the booster spring 152 is fixed to the positioning sleeve 1511 of the satellite 151 in the lower layer through a positioning pin 153, thereby restricting the displacement of the booster spring 152 and preventing the booster spring 152 from flying out when the satellite 151 is separated.

[0043] When the rocket carries the multi-satellite stack satellite unlocking and distributing device of the present application and the satellite reaches the predetermined orbit, a plurality of unlocking devices 130 are unlocked simultaneously, the tensioning device 120 is separated simultaneously, and rotates and is clamped into the recovery groove 1121 of the base 112. At this time, the satellite stack group 150 is in an unconstrained state, the separating pull pin 144 of the separating booster device 140 is unlocked, and the ejector rod 143 of the separating booster device 140 pushes the satellite stack group 150 to separate from the base 110, thereby realizing the separation of the satellite stack group 150 from the rocket. The multi-satellite stack satellite unlocking and distributing device in the present application has a simple structure, good manufacturability, high separation reliability, and can also avoid the retention of redundant objects in space.

[0044] For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present application is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0045] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multi-star stacked satellite unlocking and distribution device, characterized in that, Comprising: a base, a tensioning device, an unlocking device, a separation boosting device, a satellite stack group, and a tensioning device recovery mechanism; The base comprises: an upper plate and a base fixed to the lower surface of the upper plate; at positions near the edge of the upper plate, a plurality of positioning sleeve mounting holes penetrating up and down are provided, and each positioning sleeve mounting hole is provided with two pull rod mounting holes penetrating the upper plate up and down and opening outward, and these two pull rod mounting holes are distributed on both sides of the positioning sleeve mounting hole they are matched with. The upper surface of the upper plate has a downward concave separation boosting device mounting hole; on the outer surface of the lower end of the base, there is a recovery groove extending up and down, and the tensioning device recovery mechanism is installed in the recovery groove; The separation boosting device is installed in the separation boosting device mounting hole, and the separation boosting device comprises: a separation seat, a separation spring, a push rod, and a separation pin extractor; the separation seat has a push rod fitting hole with an opening facing upward, the separation spring is sleeved on the push rod, the lower end of the push rod is inserted into the push rod fitting hole, and the push rod is slidably fitted with the separation seat. The lower end of the push rod has a radially extending locking hole, the separation seat has a separation pin extractor insertion hole penetrating inside and outside, and the pin of the separation pin extractor is inserted into the separation pin extractor insertion hole from the outside and extends into the locking hole of the push rod; At the edge position of each satellite in the satellite stack group, there are a plurality of positioning sleeves penetrating up and down, and the positioning sleeves of the satellites in the upper layer are inserted into the positioning sleeves of the satellites in the lower layer, and the positioning sleeves of the satellites at the bottom layer are inserted into the positioning sleeve mounting holes of the upper plate; The tensioning device comprises: two pull rods, a connecting rod, and two pre-tightening nuts; the connecting rod has two connecting holes penetrating up and down, the upper end of the pull rod passes through the connecting hole on the connecting rod and is fixedly connected to the predetermined nut, and the connecting rod is pressed against the positioning sleeve of the top-layer satellite; The unlocking device comprises: two sleeves, a rotating shaft, two unlocking pin extractors, two shaft seats, a transmission device, and a driving device; the upper end of the shaft seat is fixed to the lower surface of the upper plate, the rotating shaft is fixed to the outside of the sleeve, and the rotating shaft is rotatably connected to the shaft seat; The lower end of the pull rod passes through the pull rod mounting hole on the upper plate and then extends into the sleeve, and the lower end of the pull rod is slidably fitted with the sleeve; the lower end of the pull rod has a radially extending locking hole, and on the side wall of the sleeve, there is an unlocking pin extractor insertion hole penetrating inside and outside. The pin of the unlocking pin extractor is inserted into the unlocking pin extractor insertion hole from the outside and extends into the locking hole of the pull rod; The rotating shaft is connected to the driving device through the transmission device. After the pin of the unlocking pin extractor extends out of the locking hole of the pull rod, the pull rod is released from the restriction and slides upward in the sleeve. The driving device drives the rotating shaft to rotate through the transmission device, drives the sleeve and the pull rod to rotate so that the pull rod is clamped in the recovery groove of the base, and the pull rod is restricted by the tensioning device recovery mechanism.

2. The multi-star stacked satellite unlocking and distributing device according to claim 1, wherein, The upper plate is a square plate, and positioning sleeve mounting holes are provided at the four corners of the square plate, and pull rod mounting holes are provided at the four corners of the square plate.

3. The multi-star stacked satellite unlocking and distributing device according to claim 1 or 2, characterized in that, The tensioning device recovery mechanism includes: a locking steel ball and a locking spring. The side wall of the recovery groove has a concave locking hole. The locking spring and the locking steel ball are both located in the locking hole. The inner end of the locking spring contacts the bottom of the locking hole, the outer end of the locking spring contacts the surface of the locking steel ball, and the diameter of the locking steel ball is greater than the diameter of the port of the locking hole.

4. The multi-star stacked satellite unlocking and distributing device according to claim 1 or 2, characterized in that The tensioning device further includes: a connecting clamp; the connecting clamp is connected between two pull rods.

5. The multi-star stacked satellite unlocking and distributing device according to claim 1 or 2, characterized in that The rotating shaft is provided with a driving sprocket, the transmission device is a transmission chain, the driving device is a servo motor, and the transmission chain is engaged with the driving sprocket and the sprocket on the output shaft of the servo motor.

6. The multi-star stacked satellite unlocking and allocating device according to claim 1 or 2, characterized in that The side wall of the separating seat has a radially extending positioning wing, the upper end of the ejector rod has a radially extending positioning wing, the separating spring is sleeved on the ejector rod and is located between the positioning wing of the separating seat and the positioning wing of the ejector rod.

7. The multi-star stacked satellite unlocking and distributing device according to claim 1 or 2, characterized in that, Multiple left-side satellites are stacked in the left half of the upper plate, and multiple right-side satellites are stacked in the right half of the upper plate.

8. The multi-star stacked satellite unlocking and allocating device according to claim 1 or 2, characterized in that, A boosting spring is provided between the positioning sleeve of the satellite in the upper layer and the positioning sleeve of the satellite in the lower layer.

9. The multi-star stacked satellite unlocking and distributing device according to claim 8, characterized in that, The lower end of the boosting spring is fixed to the positioning sleeve of the satellite in the lower layer.

10. The multi-star stacked satellite unlocking and allocating device according to claim 9, wherein The lower end of the boosting spring is fixed to the positioning sleeve of the satellite in the lower layer through a positioning pin.

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