CN108050351B - Unlocking type space remote sensing camera support - Google Patents

Abstract

The present invention provides an unlockable space remote sensing camera support, the unlockable space remote sensing camera support includes: two pressing members are both surrounding the connection between the support upper body and the support lower body to connect the support upper body and the support lower body A pressing ring is formed at the position, and at least one of the pressing members is provided with two first wedge-shaped members on the inner surface; the outer surface of the upper body of the bracket and the outer surface of the lower body of the bracket are provided with second wedge-shaped members, The second wedge of the upper body of the bracket is matched with one of the two first wedges, and the second wedge of the lower body of the bracket is matched with one of the two first wedges; the two locks One end of each of the pressing members is connected with one of the two pressing members through a hinge, and the locking member is matched with the other of the two pressing members, each of the two locking members The other end is fixedly connected by the explosion bolt.

Description

An unlockable space remote sensing camera bracket

technical field

The invention relates to the technical field of space remote sensing, in particular to an unlockable space remote sensing camera bracket.

Background technique

With the rapid development of space remote sensing cameras, the resolution and scale of cameras are getting higher and higher. The camera bracket is the connection mechanism between the remote sensing camera and the satellite platform. For a large-scale space remote sensing camera, from the launch of the rocket to entering the predetermined orbit, the camera itself will bear several times of inertial force. In order to achieve reliable connection between the remote sensing camera and the satellite platform, Therefore, higher requirements are placed on the camera bracket.

At present, the commonly used connection and separation devices in the field of space remote sensing mainly include the direct connection and unlocking device using explosive bolts and the strap-type connection and unlocking device. The direct use of explosive bolts to connect the unlocking device has a simple structure and is easy to implement, but since the bearing capacity of a single explosive bolt is limited, in order to improve the bearing capacity of the structure, multiple explosive bolts are often used in parallel to work together, and all explosive bolts must be used in parallel. The bolts are all exploded successfully to complete the unlocking function. The greater the number of explosive bolts, the worse the reliability of separation; the separation of the strap-type connection and unlocking structure is relatively high because of the use of multiple explosive bolts connected in series, but with the increase of the number of explosive bolts, the separation reliability is relatively high. The impact on the structure is bound to increase, which will have a certain impact on the safety of the system. In addition, its structure size is large, its carrying capacity is small, and its load efficiency is low. The above two commonly used methods are not suitable for the connection and unlocking of large-scale space remote sensing cameras and satellite platforms. Connecting and unlocking the bracket is of great significance to the application of large-scale space remote sensing cameras.

SUMMARY OF THE INVENTION

The invention aims to solve the problems of poor unlocking reliability and low bearing capacity of the connection and unlocking device used to connect a large-scale space remote sensing camera and a satellite platform in the prior art. Reliable and easy to implement unlockable space remote camera mount.

The present invention provides an unlockable space remote sensing camera bracket of an embodiment, the unlockable space remote sensing camera bracket includes an explosion bolt, two pressing parts, two locking parts, a hinge, an upper body of the bracket, and an upper body connected to the bracket. Body-fitted lower body of the bracket;

The cooperation of the two pressing pieces can form a pressing ring, the pressing ring is matched with the connection between the upper body of the bracket and the lower body of the bracket, and the axial width of the pressing ring is larger than the axial width of the connection between the upper body of the bracket and the lower body of the bracket. width, two first wedge-shaped pieces are arranged on the inner surface of at least one of the pressing pieces;

The outer surface of the upper body of the bracket and the outer surface of the lower body of the bracket are provided with second wedge-shaped pieces, the second wedge-shaped piece of the upper body of the bracket is matched with one of the two first wedge-shaped pieces, and the second wedge-shaped piece of the upper body of the bracket is matched with one of the two first wedge-shaped pieces. a second wedge is engaged with one of the two first wedges;

One end of each of the two locking members is connected with one of the two pressing members through a hinge, and the two locking members are matched with the other of the two pressing members, and the two The other ends of each of the locking pieces are fixedly connected by the explosive bolts so that the two locking pieces abut the outer surface of the other one of the two pressing pieces.

Compared with the prior art, the technical solution of the present invention has the beneficial effect that: two pressing members are pressed by two locking members and an explosive bolt, and then at least one pressing member is provided with two pressing members on its inner surface. a first wedge, the outer surface of the upper body 2 of the bracket and the outer surface of the lower body of the bracket are provided with a second wedge, the first wedge and the second wedge cooperate so that the two locking members and the explosion bolt The compressive force of the two compressing pieces makes the upper body of the bracket and the lower body of the bracket realize a firm connection. When the explosion bolt is exploded and unlocked, the compressive force from the two locking parts and the explosion bolt disappears, so the The upper body of the bracket and the lower body of the bracket can be separated, so the unlockable space remote sensing camera bracket has compact structure, large bearing capacity, firm connection, reliable unlocking and easy realization.

Description of drawings

FIG. 1 is a schematic structural diagram of an embodiment of an unlockable space remote sensing camera bracket of the present invention.

FIG. 2 is a schematic structural diagram of another embodiment of the unlockable space remote sensing camera bracket of the present invention.

1. Explosion bolt, 2. Upper body of bracket, 3. Lower body of bracket, 4. First wedge, 5. Second wedge, 6. Hinge, 7. Press ring, 71, First press, 72, No. Two pressing pieces, 81, a first locking piece, 82, a second locking piece.

Detailed ways

The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

The present invention provides an embodiment of the unlockable space remote sensing camera support. The unlockable space remote sensing camera support includes an explosion bolt 1, two pressing parts, two locking parts, a hinge 6, and an upper body of the support. 2 and the bracket lower body 3 matched with the bracket upper body 2;

The cooperation of the two pressing members can form a pressing ring 7, which is matched with the connection between the upper body 2 of the bracket and the lower body 3 of the bracket, and the axial width of the pressing ring is larger than the width of the upper body 2 of the bracket and the lower body 3 of the bracket. The axial width of the connection, two first wedge-shaped pieces 4 are arranged on the inner surface of at least one of the pressing pieces;

The outer surface of the upper bracket body 2 and the outer surface of the lower bracket body 3 are provided with a second wedge-shaped member 5 , and the second wedge-shaped member 5 of the bracket upper body 2 is matched with one of the two first wedge-shaped members 4 . , the second wedge of the lower body of the bracket is matched with the other of the two first wedges 4;

One end of each of the two locking members is connected with one of the two pressing members through a hinge 6, and the two locking members are matched with the other of the two pressing members, and the The other end of each of the two locking pieces is fixedly connected by the explosive bolt 1 so that the two locking pieces abut the outer surface of the other one of the two pressing pieces. Specifically, the upper bracket body 2 is connected with the remote sensing camera, and the lower bracket body 3 is connected with the satellite platform, that is, one end of the upper bracket body 2 is matched with one end of the lower bracket body 3, and the other end of the upper bracket body 2 is connected with the remote sensing camera. The other end of the lower body 3 of the bracket is connected with the satellite platform.

In the present invention, two pressing members are pressed by two locking members and explosive bolts, and then two first wedge members 4 are arranged on the inner surface of at least one of the pressing members. Both the outer surface and the outer surface of the lower body 3 of the bracket are provided with a second wedge-shaped member 5, and the first wedge-shaped member 4 and the second wedge-shaped member 5 cooperate so that the pressing force from the two locking members and the explosion bolt passes through the two pressing members. The upper body of the bracket and the lower body of the bracket realize a firm connection. When the explosion bolt is exploded and unlocked, the pressing force from the two locking parts and the explosion bolt disappears, and the upper body of the bracket and the lower body of the bracket disappear. Therefore, the unlockable space remote sensing camera bracket has the advantages of compact structure, large bearing capacity, firm connection, reliable unlocking and easy realization.

In a specific implementation, as shown in FIGS. 1 and 2 , the two pressing members include a first pressing member 71 and a second pressing member 72 , and the first pressing member 71 and the second pressing member 72 cooperate with each other. A pressure ring 7 can be formed, and the pressure ring 7 is matched with the connection between the upper body 2 of the bracket and the lower body 3 of the bracket, and the axial width of the pressure ring is larger than the axial width of the connection between the upper body 2 of the bracket and the lower body 3 of the bracket. Width, that is to say, the first pressing member 71 surrounds and abuts against a part of the outer surface of the connection between the upper bracket body 2 and the lower bracket body 3, and the second pressing member 72 surrounds and abuts on the upper bracket body 2 and the bracket lower body 3. The other part of the outer surface of the joint of the lower body of the bracket 3, so that the first pressing member 71 and the second pressing member 72 cooperate to surround the outer surface of the joint of the upper bracket body 2 and the lower body 3 of the bracket, and the first pressing The axial width of the member 71 and the second pressing member 72 at the connection between the upper bracket body 2 and the lower bracket body 3 is greater than the axial width of the connection between one end of the upper bracket body 2 and one end of the lower bracket body 3, so that the first compression The member 71 and the second pressing member 72 can tightly connect the bracket upper body 2 and the bracket lower body 3 . Specifically, two first wedge-shaped members 4 are provided on the inner surface of at least one of the pressing members, that is, two first wedge-shaped members 4 are provided on the first pressing member 71 , or, the second pressing member 71 is provided with two first wedge-shaped members 4 Two first wedge members 4 are arranged on the member 72 , or two first wedge members 4 are arranged on both the first pressing member 71 and the second pressing member 72 .

In a specific implementation, in order to connect the upper bracket body 2 and the lower bracket body 3 more closely, two second wedge members 5 are provided on the outer surface of the upper bracket body 2, and the outer surface of the lower bracket body 3 is A second wedge-shaped member 5 is provided, and one of the two second wedge-shaped members 5 of the upper body 2 of the bracket is correspondingly matched with one of the two first wedge-shaped members 4 of the first pressing member 71 . The other one of the two second wedges 5 of the body 2 is matched with one of the two first wedges 4 of the second pressing member 72 ; one of the two second wedges 5 of the lower body 3 of the bracket Matching with the other of the two first wedge-shaped members 4 of the first pressing member 71 , the other of the two second wedge-shaped members 5 of the lower body 3 of the bracket and the two first wedge-shaped members of the second pressing member 72 Another corresponding fit of piece 4.

In a specific implementation, the two locking members include a first locking member 81 and a second locking member 82, and one end of each of the two locking members is connected to one of the two pressing members through the hinge 6 connected, and the two locking pieces are matched with the other one of the two pressing pieces, and the other end of each of the two locking pieces is fixedly connected by the explosive bolt 1 so that the locking piece Abutting against the outer surface of the other of the two pressing members, that is, one end of the first locking member 81 and one end of the second locking member 82 are connected to the first pressing member 71 through the hinge 6, Both the first locking member 81 and the second locking member 82 cooperate with the second pressing member 72 and the other end of the first locking member 81 and the other end of the second locking member 82 are fixedly connected by the explosion bolt 1 so that one end of the first locking member 81 and the second locking member 82 abut against the outer surface of the second pressing member 72, so that the first pressing member 71 and the second pressing member The body 2 and the lower body 3 of the bracket are more closely connected. Of course, in specific embodiments, the positions between the first pressing member 71 and the second pressing member 72 can be interchanged.

In a specific implementation, when the first wedge-shaped member 4 is a wedge-shaped protrusion, the second wedge-shaped member 5 is a wedge-shaped groove, or, when the first wedge-shaped member 4 is a wedge-shaped groove, the second wedge-shaped member 5 is a wedge-shaped protrusion. . Further, the first wedge-shaped member 4 is arranged along the circumferential direction of the pressing member. Specifically, when the first wedge-shaped member 4 is only arranged on the first pressing member 71 and the first wedge-shaped member 4 is a wedge-shaped protrusion When the first wedge-shaped member 4 is arranged along the circumferential direction of the first pressing member 71 , that is, when the first wedge-shaped member 4 forms two semi-annular wedge-shaped protrusions on the first pressing member 71 The first wedge-shaped member 4 is only arranged on the second pressing member 72 and the first wedge-shaped member 4 is a wedge-shaped protrusion. , the first wedge-shaped member 4 is arranged along the circumferential direction of the second pressing member 72 , that is, when the first wedge-shaped member 4 forms two semi-annular wedge-shaped protrusions on the second pressing member 72 , which are respectively matched with the wedge-shaped grooves on the upper body 2 of the bracket and the lower body 3 of the bracket in a one-to-one correspondence. In order to connect the bracket upper body 2 and the bracket lower body 3 more closely, when the first wedge members 4 are both arranged on the first pressing member 71 and the second pressing member 72 and the first wedge member 4 is a wedge-shaped protrusion, The first wedge-shaped member 4 is arranged along the circumferential direction of the first pressing member 71 , and the first wedge-shaped member 4 is arranged along the circumferential direction of the second pressing member 72 . A wedge-shaped member 4 forms two semi-annular wedge-shaped protrusions on the first pressing member 71 and the second pressing member 72. The first wedge-shaped member 4 on the first pressing member 71 is connected to the upper bracket body 2 and the bracket respectively. The wedge-shaped grooves on the lower body 3 are matched in one-to-one correspondence, and the first wedge-shaped members 4 on the second pressing member 72 are respectively matched with the wedge-shaped grooves on the upper bracket body 2 and the lower bracket body 3 in a one-to-one correspondence.

In a specific implementation, the number of the explosive bolts 1 can be one or two in series. When the number of the explosive bolts 1 is one, after the satellite enters the predetermined orbit, the upper body 2 of the bracket can be made by unlocking only one explosive bolt 1 It is separated from the lower body 3 of the bracket, so as to release the redundant constraints on the remote sensing camera, so that the remote sensing camera can work normally. When the two explosion bolts 1 are connected in series, the upper body 2 of the bracket and the lower body 3 of the bracket are more closely connected. In addition, as long as one explosion bolt is successfully unlocked, the remote sensing camera bracket is also successfully unlocked, which improves the performance of the remote sensing camera bracket. unlocking reliability.

In a specific implementation, one end of each of the two locking members is provided with a protrusion, and the outer surface of the other of the two pressing members is provided with two grooves 721 , the protrusions and the The grooves 721 are in a one-to-one correspondence with each other. Specifically, one end of the first locking member 81 and one end of the second locking member 82 are provided with protrusions, and there are two grooves on the outer surface of the second pressing member 72. The grooves are in a one-to-one correspondence with each other, so that the first locking member 81 and the second locking member 82 are press-fitted with the second pressing member 72 respectively. Further, the protrusions are arranged at the joints between one end of each of the two locking pieces and the hinge 6, and the two grooves are respectively arranged at the other of the two pressing pieces in a one-to-one correspondence. on both ends. Specifically, the protrusions are provided at the positions where the first locking member 81 and the second locking member 82 cooperate with the hinge 6 respectively, that is, one protrusion is provided on the first locking member 81 and is close to the first locking member 81 At the cooperating position with the hinge 6 , another protrusion is provided on the second locking member 82 and is close to the cooperating position between the first locking member 81 and the hinge 6 . The two grooves 721 are respectively disposed on both ends of the second pressing member 72 in a one-to-one correspondence, and are matched with the two protrusions in a one-to-one correspondence.

The outer surfaces of the upper body 2 of the bracket and the lower body 3 of the bracket are each provided with a wedge-shaped groove, and these two wedge-shaped grooves cooperate with the wedge-shaped protrusions on the pressure ring 7. The ring 7 and the wedge-shaped groove of the lower body 3 of the bracket are not self-locking, that is, they can move relatively. After the explosion bolt 1 is tightened and installed, the two locking parts are connected together to form a certain pressure on the pressure ring 7. The pressure ring 7 presses and connects the upper body 2 of the bracket and the lower body 3 of the bracket respectively through the wedge-shaped protrusions. The position between 2 and the lower body of the bracket 3 is fixed, that is, there is no relative movement to form a rigid bracket, so that the remote sensing camera and the satellite are firmly connected. When the remote sensing camera enters the track, it is unlocked by detonating the explosion bolt 1. After unlocking, the two locking members can be separated. The separated locking members can drive the first pressing member 71 and the second pressing member forming the pressing ring 7 through the hinge 6. The pressing member 72 can also be separated, that is, the pressure from the locking member on the pressing ring 7 disappears, and the bracket upper body 2 and the bracket lower body 3 are not constrained by the pressing ring 7. At this time, if the bracket upper body 2 and the bracket The lower body 3 can move relatively. Since the pressure ring 7 is not self-locking between the upper body of the bracket and the lower body of the bracket, the upper body 2 of the bracket and the lower body 3 of the bracket can be completely separated. At this time, the connection function of the rigid bracket is lost, and the remote sensing camera The superfluous constraints received are lifted. On the premise that the mechanism is not self-locking, by reasonably selecting the angle of the corresponding wedge-shaped groove, the bracket structure has a certain mechanical property amplification effect, and can withstand large axial force, tangential force and bending moment. Play a switch role, less stress.

In a specific implementation, the unlockable space remote sensing camera bracket of the present invention is applied to a large-scale photoelectric transmission type space remote sensing camera, and the remote sensing camera is connected to the satellite platform through three unlockable space remote sensing camera brackets and three flexible brackets. . When the satellite enters the predetermined orbit, it is unlocked by an explosive bolt 1, and the redundant constraints on the remote sensing camera are released, so that the remote sensing camera can work normally.

The unlockable space remote sensing camera bracket proposed by the present invention has ingenious design, compact structure, a certain mechanical amplification effect, large bearing capacity, firm connection, reliable unlocking, and easy implementation. It solves the problem of remote sensing during satellite launch. The support of the camera and the release of the degree of freedom after on-orbit work can be easily applied to engineering projects, and the structure has strong adaptability. After simple adjustment, it can have higher bearing capacity and unlocking reliability.

What is described in the above-mentioned embodiments and specification is only to illustrate the principle and best embodiment of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have various changes and improvements, and these changes and improvements all fall within the scope of the present invention. within the scope of the claimed invention.

Claims (8)

1. An unlockable space remote sensing camera support, characterized in that: the unlockable space remote sensing camera support comprises an explosion bolt, two pressing parts, two locking parts, a support upper body and a support upper body that cooperates with the support. the lower body of the stent; The cooperation of the two pressing pieces can form a pressing ring, the pressing ring is matched with the connection between the upper body of the bracket and the lower body of the bracket, and the axial width of the pressing ring is larger than the axial width of the connection between the upper body of the bracket and the lower body of the bracket. width, two first wedge-shaped pieces are arranged on the inner surface of at least one of the pressing pieces; The outer surface of the upper body of the bracket and the outer surface of the lower body of the bracket are provided with second wedge-shaped pieces, the second wedge-shaped piece of the upper body of the bracket is matched with one of the two first wedge-shaped pieces, and the second wedge-shaped piece of the upper body of the bracket is matched with one of the two first wedge-shaped pieces. a second wedge is engaged with one of the two first wedges; One end of each of the two locking members is connected with one of the two pressing members through a hinge, and the two locking members are matched with the other of the two pressing members, and the two The other ends of each of the locking pieces are fixedly connected by the explosive bolts so that the two locking pieces abut the outer surface of the other one of the two pressing pieces; The explosion bolt can be one or two in series; One end of each of the two locking members is provided with a protrusion, and the outer surface of the other of the two pressing members is provided with two grooves, and the protrusion and the groove are one by one. Corresponds to abutting fit. 2 . The unlockable space remote sensing camera stand according to claim 1 , wherein when the first wedge-shaped member is a wedge-shaped protrusion, the second wedge-shaped member is a wedge-shaped groove. 3 . 3 . The unlockable space remote sensing camera bracket of claim 1 , wherein when the first wedge-shaped member is a wedge-shaped groove, the second wedge-shaped member is a wedge-shaped protrusion. 4 . 4 . The unlockable space remote sensing camera bracket of claim 1 , wherein the first wedge-shaped member is disposed along the circumferential direction of the pressing member. 5 . 5 . The unlockable space remote sensing camera bracket according to claim 1 , wherein the second wedge-shaped member of the upper body of the bracket is arranged along the circumference of the upper body of the bracket. 6 . 6 . The unlockable space remote sensing camera bracket of claim 1 , wherein the second wedge-shaped member of the lower body of the bracket is disposed along the circumference of the lower body of the bracket. 7 . 7 . The unlockable space remote sensing camera bracket according to claim 1 , wherein the protrusion is provided at the joint between one end of each of the two locking members and the hinge. 8 . 8 . The unlockable space remote sensing camera stand according to claim 1 , wherein the two grooves are respectively provided on both ends of the other one of the two pressing members in a one-to-one correspondence. 9 .

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