A recyclable unlocking bracket assembly and adjustment device for an ultra-large aperture space optical remote sensing camera

Abstract

The present invention discloses a recyclable unlocking bracket adjustment device for a super-large aperture space optical remote sensing camera, comprising a supporting fixture supported on the back of the unlocking bracket; connecting rods arranged in parallel on both sides of the unlocking bracket; an upper connecting rod screw passing through the connecting rod and the upper bracket and connected to the wedge block; a lower connecting rod screw passing through the connecting rod and the lower bracket and connected to the wedge block; a locking screw passing through the side wall of the supporting fixture and connected to the connecting rod, tightening the locking screw drives the connecting rod and the upper connecting rod screw and the lower connecting rod screw to lock, so that multiple wedge blocks are closely matched with the upper bracket and the lower bracket respectively. The present invention overcomes the elastic potential energy of the elastic guide and space control system through the adjustment method of the set screw connecting rod; through the tolerance design of the upper and lower connecting rod screws and the reserved holes of the upper bracket and the lower bracket, the positioning accuracy of the four wedge blocks and the repeated positioning accuracy of the unlocking bracket after disassembly and assembly can be guaranteed, thereby ensuring the overall rigidity of the unlocking bracket.

Description

Technical Field

[0001] The present invention relates to the field of space optical remote sensing technology, and in particular to a recyclable unlocking bracket assembly and adjustment device for an ultra-large aperture space optical remote sensing camera. Background Art

[0002] With the rapid development of large-aperture space payloads, camera imaging capabilities are constantly increasing. As the connection and separation device between space remote sensing cameras and satellite platforms, unlockable camera brackets require excellent overall rigidity during transport to withstand gravitational overloads during launch and orbit change. Upon reaching the designated orbit, explosive bolts within the bracket detonate, destroying the overall rigidity and eliminating internal stresses. The satellite payload can adjust the camera's attitude under the movement of the flexible support. The increasing demand for camera attitude adjustment places higher demands on the unlockable camera bracket's load capacity, the clearance after unlocking, and the control of the bracket's internal components after unlocking. This is why the retractable unlockable bracket for ultra-large-aperture space optical remote sensing cameras has emerged.

[0003] When the bracket is locked, the elastic guide and space control system is in an elastic state, and a large amount of elastic potential energy is stored inside the system, which poses a great challenge to the installation and adjustment of the support. The existing installation and adjustment device is difficult to complete the installation of the elastic state of the elastic guide and space control system, and cannot guarantee the overall rigidity and external interface accuracy of the bracket after installation.

[0004] Based on the above technical problems, technical personnel in this field urgently need to develop a recyclable unlocking bracket installation device for an ultra-large aperture space optical remote sensing camera that can complete the installation of the elastic guide and elastic state of the space control system, ensure that multiple wedge blocks are evenly distributed along the circumferential direction, and ensure the external interface accuracy of the unlocking bracket and the overall stiffness requirements of the bracket. Summary of the Invention

[0005] The purpose of the present invention is to provide a recyclable unlocking bracket installation device for an ultra-large aperture space optical remote sensing camera that can complete the installation of the elastic guide and elastic state of the space control system, ensure that multiple wedge blocks are evenly distributed along the circumferential direction, and ensure the external interface accuracy of the unlocking bracket and the overall stiffness requirements of the bracket.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] The present invention provides a recyclable unlocking bracket adjustment device for an ultra-large aperture space optical remote sensing camera. The unlocking bracket comprises an upper bracket and a lower bracket. Wedges are provided on both sides of the interior of the upper bracket and the interior of the lower bracket. The adjustment device comprises:

[0008] A supporting tool, supported on the back of the unlocking bracket; and

[0009] Connecting rods arranged in parallel on both sides of the unlocking bracket;

[0010] an upper connecting rod screw passing through the connecting rod and the upper bracket and connected to the wedge block;

[0011] a lower connecting rod screw passing through the connecting rod and the lower bracket and connected to the wedge block;

[0012] The adjustment device also includes:

[0013] A locking screw passes through the side wall of the supporting fixture and is connected to the connecting rod. Tightening the locking screw drives the connecting rod and the upper connecting rod screw and the lower connecting rod screw to lock, so that the multiple wedge blocks are tightly matched with the upper bracket and the lower bracket respectively.

[0014] Furthermore, a first conical surface is formed at the lower bending portion of the upper bracket, and a second conical surface is formed at the upper bending portion of the lower bracket. By tightening the locking screw, the four wedge blocks are driven to engage with the first conical surface and the second conical surface respectively.

[0015] Furthermore, the unlocking bracket further comprises an upper protective cover threadedly connected to the upper end of the upper bracket, and the upper protective cover is provided with an upper wiring reserved hole;

[0016] A lower protective cover is threadedly connected to the lower end of the lower bracket, and a lower wiring hole is opened on the lower protective cover;

[0017] An upper pressing block is provided inside the upper bracket, a tapered block is provided inside the lower bracket, and a threaded barrel is provided between the four wedge blocks. The upper explosive bolt passes through the upper pressing block and is connected to the upper end of the threaded barrel, and the lower explosive bolt passes through the tapered block and is connected to the lower end of the threaded barrel.

[0018] It also includes an upper manifold joint and a lower manifold joint. The upper manifold joint passes through the upper wiring reserved hole and is threadedly connected to the upper explosive bolt. The lower manifold joint passes through the lower wiring reserved hole and is threadedly connected to the lower explosive bolt.

[0019] Furthermore, the unlocking bracket further includes four leaf springs passing through the upper pressing block and the wedge block and fixedly connected to the upper pressing block via tightening screws;

[0020] Springs are mounted in the four wedge grooves.

[0021] Preferably, the inner diameter of the upper wiring reserved hole is smaller than the outer diameter of the upper explosive bolt, and the inner diameter of the lower wiring reserved hole is smaller than the outer diameter of the lower explosive bolt.

[0022] Preferably, the polished rod parts of the upper connecting rod screw and the lower connecting rod screw both adopt a negative tolerance of 30-0.10, and the first conical surface and the second conical surface are both provided with reserved holes for the upper connecting rod screw and the lower connecting rod screw to pass through, and the reserved holes adopt a positive tolerance of 3+0.10.

[0023] In the above technical solution, the present invention provides a retractable unlocking bracket adjustment device for an ultra-large aperture space optical remote sensing camera, which has the following beneficial effects:

[0024] The present invention provides a recyclable unlocking bracket installation and adjustment device for an ultra-large aperture space optical remote sensing camera with a simple structure. Through the installation and adjustment method of the tightening screw connecting rod, the elastic potential energy of the elastic guide and the space control system is overcome; through the tolerance design of the upper and lower connecting rod screws and the reserved holes of the upper bracket and the lower bracket, the positioning accuracy of the four wedge blocks and the repeated positioning accuracy of the unlocking bracket after disassembly and assembly can be guaranteed, thereby ensuring the overall rigidity of the recyclable unlocking bracket of the ultra-large aperture space optical remote sensing camera, the external interface accuracy and the isometry requirements of the six unlocking brackets. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0026] Figure 1 This is a schematic diagram of the internal state of the unlocked bracket of a recyclable unlocking bracket adjustment device for an ultra-large aperture space optical remote sensing camera provided by an embodiment of the present invention.

[0027] Description of reference numerals:

[0028] 1. Unlock bracket; 2. Support fixture; 3. Connecting rod; 4. Upper connecting rod screw; 5. Lower connecting rod screw; 6. Locking screw;

[0029] 101. Upper bracket; 102. Lower bracket; 103. Wedge; 104. Upper protective cover; 105. Lower protective cover; 106. Upper pressure block; 107. Conical block; 108. Threaded barrel; 109. Upper explosive bolt; 1010. Lower explosive bolt; 1011. Upper manifold joint; 1012. Lower manifold joint; 1013. Compression screw; 1014. Leaf spring; 1015. Spring.

[0030] 101-1, first conical surface; 102-1, second conical surface; 1041, upper wiring reserved hole; 1051, lower wiring reserved hole. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0032] See also Figure 1 As shown;

[0033] The present invention provides a recyclable unlocking bracket adjustment device for an ultra-large aperture space optical remote sensing camera. The unlocking bracket 1 comprises an upper bracket 101 and a lower bracket 102. Wedges 103 are provided on both sides of the interior of the upper bracket 101 and the interior of the lower bracket 102. The adjustment device comprises:

[0034] A supporting tool 2, supported on the back of the unlocking bracket 1; and

[0035] Connecting rods 3 arranged in parallel on both sides of the unlocking bracket 1;

[0036] an upper connecting rod screw 4 passing through the connecting rod 3 and the upper bracket 101 and connected to the wedge block 103;

[0037] A lower connecting rod screw 5 passing through the connecting rod 3 and the lower bracket 101 and connected to the wedge block 103;

[0038] The locking screw 6 passes through the side wall of the supporting tooling 2 and is connected to the connecting rod 3. Tightening the locking screw 6 drives the connecting rod 3 and the upper connecting rod screw 4 and the lower connecting rod screw 5 to be locked, so that the multiple wedge blocks 103 are tightly matched with the upper bracket 101 and the lower bracket 102 respectively.

[0039] As a further introduction to this embodiment, the present invention mainly includes a supporting tool 2, a connecting rod 3, an upper connecting rod screw 4, a lower connecting rod screw 5, and a locking screw 6. During the unlocking bracket adjustment process, the leaf spring 1014 is passed through the reserved hole of the upper pressure block 106 and the center hole of the wedge block 103 respectively, and the circular hook at the lower end of the leaf spring 1014 is hooked with the groove of the lower bracket 102. The upper end of the leaf spring 1014 is fixed to the upper pressure block 106 by the clamping screw 1013. After the four leaf springs 1014 are installed, two springs 1015 are installed in the groove of the wedge block 103. The springs 1015 are in a contracted state. The front ends of the upper connecting rod screw 4 and the lower connecting rod screw 5 are both M3 external threads. The upper connecting rod screw 4 passes through the connecting rod 3, the reserved hole of the first conical surface 101-1 and the wedge block 5 respectively. The threaded holes are connected, and the lower connecting rod screw 5 passes through the reserved holes of the connecting rod 3 and the second conical surface 102-1 and is connected to the threaded hole of the wedge block 5. The locking screw 6 passes through the reserved hole of the supporting tooling 2 and is connected to the threaded hole of the connecting rod 3. By tightening the locking screw 6, the connecting rod 3 and the upper and lower connecting rod screws are driven to engage with the first conical surface 101-1 and the second conical surface 102-1. The lower explosive bolt 1010 passes through the conical block 107 and is connected to the threaded barrel 108. The upper explosive bolt 109 passes through the upper pressure block 106 and is connected to the threaded barrel 108. Tighten the upper and lower explosive bolts to unlock the locking of the support.

[0040] As a further introduction to this embodiment, upper manifold connector 1011 is threadedly connected to upper explosive bolt 109 through upper wiring hole 1041, and upper protective cover 104 is threadedly connected to upper bracket 101. The inner diameter of upper wiring hole 1041 is smaller than the outer diameter of upper explosive bolt 109, which can prevent upper explosive bolt 109 from flying out after the support is unlocked. Lower manifold connector 1012 is threadedly connected to lower explosive bolt 1010 through lower wiring hole 1051, and lower protective cover 105 is threadedly connected to lower bracket 102. The inner diameter of lower wiring hole 1051 is smaller than the outer diameter of lower explosive bolt 1010, which can prevent lower explosive bolt 1010 from flying out after the support is unlocked. Remove support fixture 2, connecting rod 3, upper connecting rod screw 4, lower connecting rod screw 5, and locking screw 6 to complete the installation and adjustment of the unlocked support.

[0041] As a preferred technical solution in this embodiment, the polished rod portions of the upper and lower connecting rod screws 4 and 5 have a negative tolerance of 30-0.10. Both the first conical surface 101-1 and the second conical surface 102-1 have pre-set holes for the upper and lower connecting rod screws 4 and 5, with a positive tolerance of 3+0.10. The tolerances of the polished rod shafts and holes ensure the circumferential positioning accuracy of the four wedges 103 and the repeatable positioning accuracy of the unlocking bracket 1 after assembly and disassembly. This ensures the overall rigidity of the retrievable unlocking bracket for large-aperture space remote sensing cameras, as well as the external interface precision and the isometry requirements of the six unlocking brackets.

[0042] In the above technical solution, the present invention provides a retractable unlocking bracket adjustment device for an ultra-large aperture space optical remote sensing camera, which has the following beneficial effects:

[0043] The present invention provides a recyclable unlocking bracket installation and adjustment device for an ultra-large aperture space optical remote sensing camera with a simple structure. Through the installation and adjustment method of the tightening screw connecting rod, the elastic potential energy of the elastic guide and the space control system is overcome; through the tolerance design of the upper and lower connecting rod screws and the reserved holes of the upper bracket and the lower bracket, the positioning accuracy of the four wedge blocks and the repeated positioning accuracy of the unlocking bracket after disassembly and assembly can be guaranteed, thereby ensuring the overall rigidity of the recyclable unlocking bracket of the ultra-large aperture space optical remote sensing camera, the external interface accuracy and the isometry requirements of the six unlocking brackets.

[0044] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A recyclable unlocking bracket adjustment device for an ultra-large aperture space optical remote sensing camera, wherein the unlocking bracket (1) comprises an upper bracket (101) and a lower bracket (102), and wedges (103) are provided on both sides of the interior of the upper bracket (101) and the interior of the lower bracket (102), characterized in that: The adjustment device includes: A supporting tool (2) supported on the back of the unlocking bracket (1); and Connecting rods (3) arranged in parallel on both sides of the unlocking bracket (1); an upper connecting rod screw (4) passing through the connecting rod (3) and the upper bracket (101) and connected to the wedge block (103); a lower connecting rod screw (5) passing through the connecting rod (3) and the lower bracket (102) and connected to the wedge block (103); The adjustment device also includes: A locking screw (6) passes through the side wall of the supporting fixture (2) and is connected to the connecting rod (3). Tightening the locking screw (6) drives the connecting rod (3) and the connecting rod screw (4) and the lower connecting rod screw (5) to be locked, so that the multiple wedge blocks (103) are tightly matched with the upper bracket (101) and the lower bracket (102) respectively.

2. The retractable unlocking bracket assembly and adjustment device for an ultra-large aperture space optical remote sensing camera according to claim 1, characterized in that: A first conical surface (101-1) is formed at the lower bending portion of the upper bracket (101), and a second conical surface (102-1) is formed at the upper bending portion of the lower bracket (102). By tightening the locking screw (6), the four wedge blocks (103) are driven to engage with the first conical surface (101-1) and the second conical surface (102-1) respectively.

3. The retractable unlocking bracket assembly and adjustment device for an ultra-large aperture space optical remote sensing camera according to claim 1, characterized in that: The unlocking bracket (1) further comprises an upper protective cover (104) threadedly connected to the upper end of the upper bracket (101), and an upper wiring reserved hole (1041) is opened on the upper protective cover (104); A lower protective cover (105) is threadedly connected to the lower end of the lower bracket (102), and a lower wiring reserved hole (1051) is opened on the lower protective cover (105); An upper pressing block (106) is provided inside the upper bracket (101), a conical block (107) is provided inside the lower bracket (102), and a threaded barrel (108) is provided between the four wedge blocks (103); an upper explosive bolt (109) passes through the upper pressing block (106) and is connected to the upper end of the threaded barrel (108); and a lower explosive bolt (1010) passes through the conical block (107) and is connected to the lower end of the threaded barrel (108); It also includes an upper manifold joint (1011) and a lower manifold joint (1012), wherein the upper manifold joint (1011) passes through the upper wiring reserved hole (1041) and is threadedly connected to the upper explosive bolt (109), and the lower manifold joint (1012) passes through the lower wiring reserved hole (1051) and is threadedly connected to the lower explosive bolt (1010).

4. The retractable unlocking bracket assembly and adjustment device for an ultra-large aperture space optical remote sensing camera according to claim 3, characterized in that: The unlocking bracket (1) further includes four leaf springs (1014) passing through the upper pressing block (106) and the wedge block (103) and fixedly connected to the upper pressing block (106) via tightening screws (1013); Springs (1015) are installed in the grooves of the four wedge blocks (103).

5. The retractable unlocking bracket assembly and adjustment device for an ultra-large aperture space optical remote sensing camera according to claim 3, characterized in that: The inner diameter of the upper wiring reserved hole (1041) is smaller than the outer diameter of the upper explosive bolt (109), and the inner diameter of the lower wiring reserved hole (1051) is smaller than the outer diameter of the lower explosive bolt (1010).

6. The retractable unlocking bracket assembly and adjustment device for an ultra-large aperture space optical remote sensing camera according to claim 2, characterized in that: The polished rod parts of the upper connecting rod screw (4) and the lower connecting rod screw (5) both adopt a negative tolerance of 30-0.10, and the first conical surface (101-1) and the second conical surface (102-1) are both provided with reserved holes for the upper connecting rod screw (4) and the lower connecting rod screw (5) to pass through, and the reserved holes adopt a positive tolerance of 3+0.10.

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