A zero-gravity hanging device capable of realizing two-dimensional secondary expansion

Abstract

The present invention proposes a zero-gravity suspension device that can realize two-dimensional secondary expansion, which belongs to the field of aerospace, and particularly relates to a zero-gravity suspension device that can realize two-dimensional secondary expansion. It solves the problem that the existing zero-gravity suspension system or zero-gravity air flotation system is difficult to meet the two-dimensional expansion mode of the product, which brings certain difficulties and complexities to the ground simulation of the zero-gravity expansion environment. It includes a truss, two long guide rails, a suspension assembly, a rocker frame assembly, an outer plate and an inner plate, the two long guide rails are arranged on both sides below the truss, the rocker frame assembly is rotated in the vertical direction and arranged at the bottom of the truss, the suspension assembly is arranged at the bottom of the two long guide rails and is slidably connected to the two long guide rails, the outer plate is rotated in the horizontal direction and arranged at the bottom of the suspension assembly, the inner plate is connected to the bottom of the rocker frame assembly, and the rocker frame assembly drives the inner plate to rotate in the vertical direction. It is mainly used for zero-gravity expansion mechanism.

Description

Technical Field

[0001] The invention belongs to the field of aerospace, and in particular relates to a zero-gravity suspension device capable of realizing two-dimensional secondary deployment. Background Art

[0002] At present, most of the deployable structures in the aerospace field are deployed in one dimension, such as rigid solar panels and antennas on traditional platforms. Traditional zero-gravity suspension systems or zero-gravity air flotation systems are difficult to meet the two-dimensional deployment of products, which brings certain difficulties and complexities to the simulation of zero-gravity deployment environment on the ground. Summary of the invention

[0003] In view of this, the present invention aims to propose a zero-gravity suspension device that can realize two-dimensional secondary deployment, so as to solve the problem that the existing zero-gravity suspension system or zero-gravity air flotation system is difficult to meet the two-dimensional deployment mode of the product, which brings certain difficulties and complexities to the ground simulation of zero-gravity deployment environment.

[0004] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a zero-gravity suspension device that can realize two-dimensional secondary expansion, which includes a truss, two long guide rails, a suspension assembly, a rocker frame assembly, an outer plate and an inner plate, the two long guide rails are arranged on both sides below the truss, the rocker frame assembly is rotatably arranged at the bottom of the truss along the vertical direction, the suspension assembly is arranged at the bottom of the two long guide rails and is slidably connected to the two long guide rails, the outer plate is rotatably arranged at the bottom of the suspension assembly along the horizontal direction, the inner plate is connected to the bottom of the rocker frame assembly, and the rocker frame assembly drives the inner plate to rotate in the vertical direction.

[0005] Furthermore, the truss is connected to the long guide rail via a plurality of adjustment connectors, and the plurality of adjustment connectors are evenly arranged at the bottom of the truss along the length direction of the truss.

[0006] Furthermore, the adjustment connector includes a transfer square tube and an adjustment assembly. The transfer square tube is fixedly connected to the bottom of the truss, and the long guide rail and the transfer square tube are connected via the adjustment assembly.

[0007] Furthermore, the adjustment assembly includes a left-handed screw, a screw and an adjustment body, the left-handed screw is connected to the adapter square tube through a left-handed nut, the screw is connected to the long guide rail through a nut, the left-handed screw and the screw are connected through the adjustment body, and the left-handed screw and the screw are both slidably matched with the adjustment body.

[0008] Furthermore, the rocker arm frame assembly includes an adapter frame, a bearing seat, a rotating shaft, a connecting rod, a guide rail, a first pulley assembly, a binocular adjuster, a dynamometer and a first suspension rod. The adapter frame is arranged at the bottom of the truss and is connected to the adapter square tube. The bearing seat is connected to the adapter frame by a fixed screw. The rotating shaft and the bearing seat are rotatably matched. One end of the guide rail is rotatably connected to one side of the bottom of the rotating shaft, and the other end is connected to one side of the top of the rotating shaft through a connecting rod. The first pulley assembly is slidably arranged on the guide rail, the top of the binocular adjuster is connected to the first pulley assembly, and the bottom end is connected to the dynamometer through a spring buckle. The first suspension rod is arranged below the dynamometer, and the first suspension rod and the dynamometer are connected by a wire rope.

[0009] Furthermore, the hanging assembly is a counterweight hanging assembly, which includes two short guide rails, a counterweight beam, a second hanging rod and a counterweight block. The two ends of the short guide rails are respectively slidably connected to the two long guide rails, and the two ends of the counterweight beam are respectively slidably connected to the two short guide rails. Pulleys are provided at the bottom of both ends of the counterweight beam. The second hanging rod and the counterweight block are connected with two pulleys through a steel wire rope, and the outer plate is rotatably arranged under the second hanging rod.

[0010] Furthermore, the suspension assembly is a constant force spring suspension assembly, which includes a short guide rail, a double-ring adjuster, a constant force spring and a second suspension rod, the two ends of the short guide rail are respectively slidably connected to the two long guide rails, and a second pulley assembly is slidably connected to the short guide rail, the top of the double-ring adjuster is connected to the second pulley assembly, and the bottom end is connected to the constant force spring through a spring buckle, the second suspension rod is arranged below the constant force spring, the second suspension rod and the constant force spring are connected by a steel wire rope, and the outer plate is rotatably arranged below the second suspension rod.

[0011] Furthermore, both ends of the short guide rail are provided with a second pulley assembly, and the second pulley assembly is slidably connected to the long guide rail.

[0012] Furthermore, one end of the steel wire rope is connected to the middle position of the second suspension rod.

[0013] Furthermore, a left connecting piece and a right connecting piece are rotatably provided below the two ends of the second suspension rod, and the two ends of the outer plate are connected to the left connecting piece and the right connecting piece respectively.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention uses a hanging assembly and a rocker arm assembly to realize a two-dimensional deployment of the product by combining two weight-offsetting methods of counterweight and hanging;

[0016] 2. The device of the present invention is simple and reliable to operate, and effectively realizes the two-dimensional unfolding mode of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of a zero-gravity suspension device capable of realizing two-dimensional secondary deployment according to the present invention;

[0019] Figure 2 It is a structural schematic diagram of an adjustment assembly capable of realizing a two-dimensional secondary deployment zero-gravity suspension device according to the present invention;

[0020] Figure 3 It is a structural schematic diagram of a rocker arm frame assembly of a zero-gravity suspension device capable of realizing two-dimensional secondary deployment according to the present invention;

[0021] Figure 4 It is a structural schematic diagram of a counterweight suspension group of a zero-gravity suspension device capable of realizing two-dimensional secondary deployment according to the present invention;

[0022] Figure 5 It is a three-dimensional schematic diagram of the overall structure of a zero-gravity suspension device capable of realizing two-dimensional secondary deployment according to the present invention;

[0023] Figure 6 It is a three-dimensional schematic diagram of the inner and outer panels of the zero-gravity suspension device capable of realizing two-dimensional secondary deployment according to the present invention, with the inner and outer panels in place;

[0024] Figure 7 It is a structural schematic diagram of a first pulley assembly and a second pulley assembly of a zero-gravity suspension device capable of realizing two-dimensional secondary deployment according to the present invention;

[0025] Figure 8 It is a structural schematic diagram of a constant force spring suspension assembly of a zero gravity suspension device capable of realizing two-dimensional secondary deployment according to the present invention;

[0026] 1-truss, 2-adapting square tube, 3-adjusting assembly, 4-long guide rail, 5-counterweight hanging assembly, 6-rocker frame assembly, 7-inner plate, 8-outer plate, 9-left-handed nut, 10-left-handed screw, 11-adjusting body, 12-nut, 13-screw, 14-adapting frame, 15-fixed screw, 16-bearing seat, 17-rotating axis, 18-connecting rod, 19-guide rail, 20-first pulley assembly, 21-binocular adjuster, 22-spring buckle, 23-dynamometer, 24-first suspension rod, 25-second pulley assembly, 26-short guide rail, 27-counterweight beam, 28-second suspension rod, 29-left connecting piece, 30-right connecting piece, 31-counterweight block, 32-double ring adjuster, 33-constant force spring. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely explain the technical solutions in the embodiments of the present invention. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict, and the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0028] Embodiment 1:

[0029] See also Figure 1-7 Embodiment 1 is described, which is a zero-gravity suspension device capable of realizing two-dimensional secondary expansion, comprising a truss 1, two long guide rails 4, a suspension assembly, a rocker frame assembly 6, an outer plate 8 and an inner plate 7, wherein the two long guide rails 4 are arranged on both sides below the truss 1, the rocker frame assembly 6 is rotatably arranged at the bottom of the truss 1 along the vertical direction, the suspension assembly is arranged at the bottom of the two long guide rails 4 and is slidably connected to the two long guide rails 4, the outer plate 8 is rotatably arranged at the bottom of the suspension assembly along the horizontal direction, the inner plate 7 is connected to the bottom of the rocker frame assembly 6, and the rocker frame assembly 6 drives the inner plate 7 to rotate along the vertical direction.

[0030] In this embodiment, the truss 1 is used to provide a rigid platform for the long guide rail 4, the hanging assembly and the rocker frame assembly 6 of the unfolding frame, so that they can achieve force balance and maintain good rigidity. The hanging assembly realizes the working mode of the outer panel 8 rotating 90° in the horizontal direction, and the rocker frame assembly 6 realizes the working mode of the inner panel 7 rotating 90° in the vertical direction, which can realize the simulation of the zero-gravity unfolding environment of the inner panel 7 and the outer panel 8, that is, after the outer panel 8 is rotated 90° in the horizontal direction, the inner panel 7 is rotated 90° in the vertical direction. The unfolding mode, wherein the rocker frame assembly 6 and the hanging assembly can respectively offset the self-weight of the inner panel 7 and the outer panel 8, realize the simulation of the zero-gravity environment, and then realize the simulation of the zero-gravity environment of the entire working process of the inner panel 7 and the outer panel 8.

[0031] In this embodiment, a plurality of adjustment connectors are arranged between the truss 1 and the long guide rail 4, and the plurality of adjustment connectors are evenly arranged at the bottom of the truss 1 along the length direction of the truss 1. The truss 1 and the long guide rail 4 are connected by the adjustment connectors, and the adjustment connectors include a transfer square tube 2 and an adjustment assembly 3. The transfer square tube 2 is fixedly connected to the bottom of the truss 1. The long guide rail 4 is connected to the transfer square tube 2 by the adjustment assembly 3. The adjustment assembly 3 includes a left-handed screw 10, a screw 13 and an adjustment body 11. The left-handed screw 10 is connected to the transfer square tube 2 by a left-handed nut 9. The screw 13 is connected to the long guide rail 4 is connected by a nut 12, the left-handed screw 10 and the screw 13 are connected by an adjusting body 11, and the left-handed screw 10 and the screw 13 are both slidably matched with the adjusting body 11. In this embodiment, the long guide rail 4 is fixed to the truss 1 by the adapter square tube 2 and the adjusting assembly 3, and the two long guide rails 4 are adjusted to meet certain requirements of straightness and horizontality through the adjusting action of the adjusting assembly 3. The left-handed screw 10 and the screw 13 on the adjusting body 11 make the long guide rail 4 meet certain requirements of straightness and horizontality. After being adjusted in place, the left-handed nut 9 and the nut 12 are used to tighten and fix them, that is, the adjustment of the long guide rail is completed.

[0032] The rocker frame assembly 6 in this embodiment includes an adapter frame 14, a bearing seat 16, a rotating shaft 17, a connecting rod 18, a guide rail 19, a first pulley assembly 20, a binocular adjuster 21, a dynamometer 23 and a first suspension rod 24. The adapter frame 14 is arranged at the bottom of the truss 1 and is connected to the adapter square tube 2. The bearing seat 16 is connected to the adapter frame 14 by a fixing screw 15. The rotating shaft 17 is rotatably matched with the bearing seat 16. One end of the guide rail 19 is rotatably connected to one side of the bottom of the rotating shaft 17, and the other end is connected to one side of the top of the rotating shaft 17 by a connecting rod 18. The first pulley assembly 20 is slidably arranged on the guide rail 19. The top of the binocular adjuster 21 is connected to the first pulley assembly 20, and the bottom end is connected to the dynamometer 23 by a spring buckle 22. The first suspension rod 24 is arranged below the dynamometer 23. The first suspension rod 24 and the dynamometer 23 are connected by a wire rope. The rocker frame assembly 6 meets the requirements of the inner plate 7 along the vertical The principle is to adjust the rocker frame assembly 6 to offset the weight of the inner plate 7 through the center of mass of the inner plate 7 to achieve a simulated zero gravity environment. The adapter frame 14 is fixed to the truss 1 through the fixing screw 15, and the connecting rod 18 can play a reinforcing role. At the same time, the horizontality of the guide rail 19 is adjusted by the telescopic connecting rod 18 to make the guide rail 19 meet the use requirements. The binocular adjuster 21 adjusts the vertical height of the first suspension rod 24, and the first pulley assembly 20 can make the first suspension rod 24 move linearly on the 6 guide rails. The first suspension rod 24 and the inner plate 7 are connected by bolts. By adjusting the reading of the dynamometer 23 to be consistent with the weight of the inner plate 7, the gravity of the inner plate 7 is offset. The rocker frame assembly 6 realizes the horizontal circular motion of the guide rail 19 in the horizontal plane through the rotating shaft 17 and the bearing seat 16, thereby realizing the rotation of the inner plate 7 in the vertical direction. The first pulley assembly 20 on the guide rail 19 can also realize the linear motion of the inner plate 7.

[0033] The hanging assembly described in this embodiment is a counterweight hanging assembly 5, which includes two short guide rails 26, a counterweight beam 27, a second suspension rod 28 and a counterweight block 31. The two ends of the short guide rails 26 are respectively slidably connected to the two long guide rails 4, and the two ends of the counterweight beam 27 are respectively slidably connected to the two short guide rails 26. Pulleys are provided at the bottom of both ends of the counterweight beam 27. The second suspension rod 28 and the counterweight block 31 are connected with the two pulleys through a steel wire rope. The outer plate 8 is rotatably arranged below the second suspension rod 28. The two ends of the short guide rails 26 are respectively provided with a second pulley assembly 25, and the second pulley assembly 25 is slidably connected to the long guide rail 4. One end of the steel wire rope is connected to the middle position of the second suspension rod 28. The lower part of the two ends of the second suspension rod 28 is A left connecting piece 29 and a right connecting piece 30 are separately provided for rotation. The two ends of the outer plate 8 are respectively connected to the left connecting piece 29 and the right connecting piece 30. The second pulley assembly 25 drives the counterweight hanging assembly 5 to slide on the long guide rail 4 through two short guide rails 26. The counterweight hanging assembly is designed to meet the working mode of the outer plate 8 rotating 90° in the horizontal direction. The principle is to offset the weight of the outer plate 8 itself by the counterweight block 31 to achieve a simulated zero-gravity environment. The outer plate 8 is connected to the second suspension rod 28 through the left connecting piece 29 and the right connecting piece 30. The left connecting piece 29 and the right connecting piece 30 drive the outer plate 8 to rotate in the horizontal direction. While the outer plate 8 rotates, it moves upward with the wire rope and the counterweight block 31 through the pulleys at both ends of the counterweight beam 27 to complete the zero-gravity simulation work.

[0034] In this embodiment, the first pulley assembly 20 and the second pulley assembly 25 are mainly composed of a pulley seat body and a rolling bearing.

[0035] Embodiment 2:

[0036] See also Figure 8 Description of the second embodiment. The suspension assembly in this embodiment is a constant force spring suspension assembly, and other structures are the same as those of the first embodiment.

[0037] The constant force spring suspension assembly in this embodiment includes a short guide rail 26, a double-ring adjuster 32, a constant force spring 33 and a second suspension rod 28. The two ends of the short guide rail 26 are respectively slidably connected to the two long guide rails 4. A second pulley assembly 25 is slidably connected to the short guide rail 26. The top of the double-ring adjuster 32 is connected to the second pulley assembly 25, and the bottom end is connected to the constant force spring 33 through a spring buckle 22. The second suspension rod 28 is arranged below the constant force spring 33. The second suspension rod 28 and the constant force spring 33 are connected by a wire rope. The outer plate 8 is rotatably arranged below the second suspension rod 28. A second pulley assembly 25 is provided at both ends of the rail 26, and the second pulley assembly 25 is slidably connected to the long guide rail 4. One end of the wire rope is connected to the middle position of the second suspension rod 28. A left connecting piece 29 and a right connecting piece 30 are rotatably provided below the two ends of the second suspension rod 28, and the two ends of the outer plate 8 are respectively connected to the left connecting piece 29 and the right connecting piece 30. The constant force spring hanging assembly in this embodiment has the same principle as the counterweight hanging assembly 5 in Example 1, except that the constant force spring 33 is used to replace the counterweight block 31 to offset gravity, and the double-ring adjuster 32 is used to adjust the vertical height of the second suspension rod 28.

[0038] The above-mentioned first and second embodiments apply the hanging assembly and the 6-piece rocker arm frame assembly to realize the combination of two weight-offsetting methods of counterweight and hanging to realize the two-dimensional deployment of the product.

[0039] The devices of the first and second embodiments are simple and reliable to operate, and effectively realize the two-dimensional unfolding of the product.

[0040] The embodiments of the present invention disclosed above are only used to help illustrate the present invention. The embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. According to the content of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well.

Claims

1. A zero-gravity hanging device capable of realizing two-dimensional secondary expansion, characterized in that: It comprises a truss (1), two long guide rails (4), a hanging assembly, a rocker frame assembly (6), an outer plate (8) and an inner plate (7), wherein the two long guide rails (4) are arranged on both sides below the truss (1), the rocker frame assembly (6) is arranged to rotate at the bottom of the truss (1) in a vertical direction, the hanging assembly is arranged at the bottom of the two long guide rails (4) and is slidably connected to the two long guide rails (4), the outer plate (8) is arranged to rotate at the bottom of the hanging assembly in a horizontal direction, the inner plate (7) is connected to the bottom of the rocker frame assembly (6), the rocker frame assembly (6) drives the inner plate (7) to rotate in a vertical direction, and the rocker frame assembly (6) comprises an adapter frame (14), a bearing seat (16), a rotating shaft (17), a connecting rod (18), a guide rail (19), a first pulley assembly (20), a binocular adjuster (21), a dynamometer ( 23) and a first suspension rod (24), the adapter frame (14) is arranged at the bottom of the truss (1) and connected to the adapter square tube (2), the bearing seat (16) is connected to the adapter frame (14) by a fixed screw (15), the rotating shaft (17) and the bearing seat (16) are rotatably matched, one end of the guide rail (19) is rotatably connected to one side of the bottom of the rotating shaft (17), and the other end is connected to one side of the top of the rotating shaft (17) by a connecting rod (18), the first pulley assembly (20) is slidably arranged on the guide rail (19), the top of the binocular adjuster (21) is connected to the first pulley assembly (20), and the bottom end is connected to the dynamometer (23) by a spring buckle (22), the first suspension rod (24) is arranged below the dynamometer (23), and the first suspension rod (24) and the dynamometer (23) are connected by a wire rope; The hanging assembly is a counterweight hanging assembly (5), and the counterweight hanging assembly (5) comprises two short guide rails (26), a counterweight beam (27), a second hanging rod (28) and a counterweight block (31). The two ends of the short guide rails (26) are respectively slidably connected to the two long guide rails (4), and the two ends of the counterweight beam (27) are respectively slidably connected to the two short guide rails (26). The bottom of both ends of the counterweight beam (27) is provided with pulleys. The second hanging rod (28) and the counterweight block (31) are connected to the two pulleys by a steel wire rope, and the outer plate (8) is rotatably arranged below the second hanging rod (28); The suspension assembly is a constant force spring suspension assembly, and the constant force spring suspension assembly comprises a short guide rail (26), a double ring adjuster (32), a constant force spring (33) and a second suspension rod (28). The two ends of the short guide rail (26) are respectively slidably connected to the two long guide rails (4). A second pulley assembly (25) is slidably connected to the short guide rail (26). The top end of the double ring adjuster (32) is connected to the second pulley assembly (25), and the bottom end is connected to the constant force spring (33) through a spring buckle (22). The second suspension rod (28) is arranged below the constant force spring (33). The second suspension rod (28) and the constant force spring (33) are connected by a steel wire rope. The outer plate (8) is rotatably arranged below the second suspension rod (28).

2. The zero-gravity suspension device capable of realizing two-dimensional secondary deployment according to claim 1, characterized in that: The truss (1) and the long guide rail (4) are connected via a plurality of adjustment connecting pieces, and the plurality of adjustment connecting pieces are evenly arranged at the bottom of the truss (1) along the length direction of the truss (1).

3. The zero-gravity suspension device capable of realizing two-dimensional secondary deployment according to claim 2, characterized in that: The adjustable connecting piece comprises a transfer square tube (2) and an adjusting assembly (3); the transfer square tube (2) is fixedly connected to the bottom of the truss (1); and the long guide rail (4) and the transfer square tube (2) are connected via the adjusting assembly (3).

4. The zero-gravity suspension device capable of realizing two-dimensional secondary deployment according to claim 3, characterized in that: The adjusting assembly (3) comprises a left-handed screw (10), a screw (13) and an adjusting body (11); the left-handed screw (10) is connected to the transfer square tube (2) via a left-handed nut (9); the screw (13) is connected to the long guide rail (4) via a nut (12); the left-handed screw (10) and the screw (13) are connected via the adjusting body (11); and the left-handed screw (10) and the screw (13) are both slidably matched with the adjusting body (11).

5. A zero-gravity suspension device capable of realizing two-dimensional secondary deployment according to any one of claim 1, characterized in that: Both ends of the short guide rail (26) are provided with a second pulley assembly (25), and the second pulley assembly (25) is slidably connected to the long guide rail (4).

6. A zero-gravity suspension device capable of realizing two-dimensional secondary deployment according to any one of claim 1, characterized in that: One end of the steel wire rope is connected to the middle position of the second suspension rod (28).

7. A zero-gravity suspension device capable of realizing two-dimensional secondary deployment according to any one of claim 1, characterized in that: A left connecting piece (29) and a right connecting piece (30) are rotatably provided below the two ends of the second suspension rod (28), and the two ends of the outer plate (8) are connected to the left connecting piece (29) and the right connecting piece (30) respectively.

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