Pod suspension device and aerostat suitable for stable observation of remote sensing payload

Abstract

The present invention relates to the technical field of aerostats, and provides a pod suspension device and an aerostat adapted to stable observation of remote sensing loads, wherein the pod suspension device adapted to stable observation of remote sensing loads is used to connect a pod and a free balloon, and comprises a first rod member arranged above the pod in a horizontal direction and a second rod member arranged between the first rod member and the pod; the first rod member is provided with a first connecting portion for connecting with the free balloon, and at least two first connecting portions are arranged at intervals along the axial direction of the first rod member; at least two pairs of second rod members are provided, and the first ends of each pair of second rod members are respectively connected to the two opposite edges of the pod, and there is a spacing between the first ends of the adjacent two pairs of second rod members, and the second ends of each pair of second rod members are connected to the first rod member, and there is a spacing between the second ends of the adjacent two pairs of second rod members. Such a setting solves the problem of poor accuracy of the test results of the remote sensing observation equipment carried by the aerostat in the prior art due to poor pod stability.

Description

Technical Field

[0001] The present invention relates to the technical field of aerostats, and in particular to a pod suspension device and an aerostat suitable for stable observation of remote sensing loads. Background Art

[0002] During the high-altitude balloon flight test, the bottom of the balloon is connected to the cabin through a cable, and the cabin carries remote sensing observation equipment and other loads required for the flight test.

[0003] In the process of launching and flying the high-altitude balloon in the prior art, the change of the high-altitude wind field can easily cause the pod to shake slightly, and the pod may rotate around the cable. For remote sensing observation and other instruments that require highly stable equipment during the flight test of the high-altitude balloon, the accuracy of the test results will be greatly affected.

[0004] Therefore, how to solve the problem of poor accuracy of test results of remote sensing observation equipment carried by aerostats in the prior art due to poor pod stability has become an important technical problem to be solved by those skilled in the art. Summary of the invention

[0005] The present invention provides a pod suspension device and an aerostat adapted for stable observation of remote sensing loads, so as to solve the defect of poor accuracy of test results of remote sensing observation equipment carried by the aerostat in the prior art due to poor pod stability.

[0006] The present invention provides a pod suspension device adapted to stable observation of remote sensing payloads, which is used to connect a pod and a free balloon, and comprises a first rod member arranged above the pod in a horizontal direction and a second rod member arranged between the first rod member and the pod;

[0007] The first rod is provided with a first connection portion for connecting with the free balloon, and at least two first connection portions are provided at intervals along the axis direction of the first rod;

[0008] At least two pairs of the second rods are provided, the first ends of each pair of the second rods are respectively connected to the two opposite side walls of the pod, there is a spacing between the first ends of two adjacent pairs of the second rods, the second end of each pair of the second rods is connected to the first rod, and there is a spacing between the second ends of two adjacent pairs of the second rods.

[0009] According to a pod suspension device adapted to stable observation of remote sensing loads provided by the present invention, two first connecting parts are provided, and the two first connecting parts are respectively located at two ends of the first rod;

[0010] Two pairs of the second rods are provided, the second ends of the two pairs of the second rods are respectively connected to the two ends of the first rod, and the distance between the first ends of the two pairs of the second rods is greater than the distance between the second ends of the two pairs of the second rods.

[0011] According to a pod suspension device adapted to stable observation of remote sensing loads provided by the present invention, the first end of the second rod is hinged to the pod, and the second end of the second rod is hinged to the first rod.

[0012] A pod suspension device adapted to stable observation of remote sensing loads provided in accordance with the present invention also includes a first connecting seat, which is arranged between the second rod and the pod, and the first connecting seat is provided with a second connecting portion for being hinged to the pod and a third connecting portion for being hinged to the first end of the second rod.

[0013] A pod suspension device adapted to stable observation of remote sensing loads provided in accordance with the present invention also includes a second connecting seat, which is arranged between the first rod and the second rod, and the second connecting seat is provided with a fourth connecting portion for hingedly connected to the second end of the second rod, a fifth connecting portion for hingedly connected to the end of the first rod, and a sixth connecting portion for connecting to the first connecting portion.

[0014] According to a pod suspension device adapted to stable observation of remote sensing loads provided by the present invention, the first rod member and the second rod member each include a rod body and joint bearings arranged at both ends of the rod body, the outer ring of the joint bearing is relatively fixed to the rod body, and the inner ring of the joint bearing is arranged to be relatively fixed to the hinge shaft.

[0015] According to a pod suspension device adapted to stable observation of remote sensing loads provided by the present invention, the first connecting part is a U-shaped member, the open end of the U-shaped member is hinged to the sixth connecting part, and the hinge axis is perpendicular to the axial direction of the first rod.

[0016] A pod suspension device adapted to stable observation of remote sensing payloads provided in the present invention also includes a connecting cable, wherein two connecting cables are provided, a first end of the two connecting cables is movably connected to the first connecting portion, and a second end of the connecting cable is connected to the main cable of the free balloon.

[0017] A pod suspension device adapted to stable observation of remote sensing loads provided in accordance with the present invention also includes a connecting member, wherein the connecting member is used to connect the connecting cable and the main cable.

[0018] The present invention also provides an aerostat, comprising a pod, a free balloon and a suspension device, wherein the suspension device is used to connect the pod to the bottom of the free balloon, and the suspension device is the above-mentioned pod suspension device adapted to stable observation of remote sensing payloads.

[0019] The pod suspension device adapted to the stable observation of remote sensing load provided by the present invention is used to connect the pod and the free balloon, and includes a first rod and a second rod. The first rod is arranged above the pod in the horizontal direction, and the second rod is arranged between the pod and the first rod to realize the connection between the first rod and the pod. At least two pairs of second rods are arranged, and there is a spacing between the second ends of two adjacent pairs of second rods, and there is a spacing between the first ends of two adjacent pairs of second rods. At least two first connecting parts are arranged on the first rod, and there is a spacing between the first connecting parts, which are used to connect with the free balloon. In this way, the arrangement of the first rod not only increases the spacing between the second ends of the two pairs of second rods, but also increases the number of connection points between the pod suspension device and the free balloon, thereby increasing the stability of the pod suspension device. There is a spacing between the connection points, and the pod is connected to the free balloon through at least two cables, which increases the difficulty of the pod rotating around the cables, and can alleviate the problem of pod rotation caused by changes in the high-altitude wind field, thereby solving the problem of poor accuracy of the test results of the remote sensing observation equipment carried by the aerostat in the prior art due to poor pod stability.

[0020] Furthermore, in the aerostat provided by the present invention, since it is provided with the pod suspension device adapted to the stable observation of remote sensing loads as described above, it also has the various advantages as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the structure of the aerostat provided by the present invention;

[0023] Figure 2 is a structural schematic diagram of a second connecting socket provided by the present invention;

[0024] Figure 3 is a structural schematic diagram of a first connecting socket provided by the present invention;

[0025] Figure 4 is a schematic structural diagram of a first rod or a second rod provided by the present invention;

[0026] Figure 5It is a schematic diagram of the connection structure between the connecting cable and the main cable provided by the present invention.

[0027] Reference numerals:

[0028] 1: pod; 2: free balloon; 3: first rod; 4: second rod; 5: first connection part; 6: first connection seat; 7: second connection part; 8: third connection part; 9: second connection seat; 10: fourth connection part; 11: fifth connection part; 12: sixth connection part; 13: rod body; 14: joint bearing; 15: connecting cable; 16: main cable; 17: connecting piece. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Combine the following Figures 1 to 5 The present invention describes a pod suspension device adapted for stable observation of remote sensing payloads.

[0031] like Figures 1 to 5 As shown, the pod suspension device adapted to the stable observation of remote sensing payload provided by the embodiment of the present invention is used to be arranged between the pod 1 and the free balloon 2, and is used to connect the pod 1 and the free balloon 2. The pod suspension device is specifically connected to the main cable 16 of the free balloon 2.

[0032] The above-mentioned pod suspension device includes a first rod 3 and a second rod 4. Specifically, the first rod 3 is used to be arranged above the open end of the pod 1 in the horizontal direction, and the second rod 4 is arranged between the first rod 3 and the pod 1 to achieve the connection between the first rod 3 and the pod 1.

[0033] A first connecting portion 5 is provided on the first rod 3 for connecting with the free balloon 2. Specifically, the first connecting portion 5 and the free balloon 2 can be connected by a cable. At least two first connecting portions 5 are provided at intervals along the axis direction of the first rod 3, and the at least two first connecting portions 5 are connected to the free balloon 2 by cables respectively.

[0034] The second rods 4 are provided in at least two pairs, each pair including two second rods 4, the first ends of the two second rods 4 of each pair are respectively connected to the two opposite side walls of the pod 1, and there is a spacing between the first ends of two adjacent pairs of second rods 4. The second ends of the two second rods 4 of each pair are connected to the first rod 3, and there is a spacing between the second ends of two adjacent pairs of second rods 4.

[0035] In this way, the first rod 3 is arranged, which not only increases the distance between the second ends of the two pairs of second rods 4, but also increases the number of connection points between the pod suspension device and the free balloon 2, thereby increasing the stability of the pod suspension device. There is a distance between the connection points between the pod suspension device and the free balloon 2, and the pod 1 is connected to the free balloon 2 by at least two cables, which increases the difficulty of the pod 1 rotating around the cables, and can alleviate the problem of the pod 1 rotating due to the change of the high-altitude wind field, and avoid collision with the release equipment, thereby solving the problem of poor accuracy of the test results of the remote sensing observation equipment carried by the aerostat due to the poor stability of the pod 1 in the prior art.

[0036] In the embodiment of the present invention, two first connecting parts 5 are provided, and the two first connecting parts 5 are respectively located at the two ends of the first rod 3. Two pairs of second rods 4 are provided, and the second ends of the two pairs of second rods 4 are respectively connected to the two ends of the first rod 3, and the distance between the first ends of the two pairs of second rods 4 is greater than the distance between the second ends. Figure 1 With such arrangement, the pod suspension device in this embodiment can ensure the stability of the pod 1 during the flight test, increase the horizontality of the pod 1 attitude, and ensure the attitude accuracy of the remote sensing observation equipment located inside the pod 1 during the flight test.

[0037] The pod suspension device adapted for stable observation of remote sensing payload in the embodiment of the present invention further includes a connecting cable 15. Two connecting cables 15 are provided, and the first ends of the two connecting cables 15 are movably connected to the two first connecting parts 5 on the first rod 3 respectively, and the second ends of the connecting cables 15 are connected to the main cable 16 of the free balloon 2.

[0038] Such an arrangement increases the carrying capacity of the pod suspension device, and the connection point between the second end of the connecting cable 15 and the main cable 16 of the free balloon 2 is used as the suspension point. Two first connecting parts 5 are provided to increase the distance between the suspension point and the pod 1, which can further increase the stability of the pod suspension device, further alleviate the problem of pod 1 shaking during flight, and further improve the accuracy of remote sensing observation.

[0039] In order to facilitate the connection between the connecting cable 15 and the main cable 16, the pod suspension device in this embodiment further includes a connecting member 17, which is used to connect the connecting cable 15 to the main cable 16. The structure of the connecting member 17 is as follows: Figure 5 As shown, it includes a connector and a plurality of lifting ears arranged on the connector, one end of the lifting ear is hinged to the connector, and the other end is provided with a connecting shaft. The connecting shaft on one of the lifting ears is used to connect with the main cable 16, and the remaining lifting ears correspond to the first connecting part 5 one by one and are connected with the connecting cables 15 respectively.

[0040] In the present embodiment, the first end of the second rod 4 is hinged to the pod 1, and the second end of the second rod 4 is hinged to the first rod 3, so that the first rod 3 and the second rod 4 only bear tension or pressure along their own axial direction, which is beneficial to reduce the strength requirements for the first rod 3 and the second rod 4, thereby helping to reduce the cross-sectional dimensions of the first rod 3 and the second rod 4, helping to reduce weight, complying with lightweight design, and helping to improve the carrying capacity of the airship.

[0041] The pod suspension device adapted to the stable observation of remote sensing load in this embodiment further includes a first connection seat 6, which is arranged between the second rod 4 and the pod 1, and is used to realize the connection between the second rod 4 and the pod 1. Figure 3 A second connection portion 7 and a third connection portion 8 are provided on the first connection seat 6 , wherein the second connection portion 7 is used for being hinged to the pod 1 , and the third connection portion 8 is used for being hinged to the first end of the second rod 4 .

[0042] Specifically, the second connecting portion 7 includes two connecting side plates, which are perpendicular to each other. Correspondingly, two supporting side plates are arranged at corresponding positions of the pod 1, which are also perpendicular to each other. The two connecting side plates and the two supporting side plates can be replaced by angle irons.

[0043] Mounting holes are provided on the connecting side panels and the supporting side panels so that the two connecting side panels and the two supporting side panels overlap, and the connecting side panels and the supporting side panels can be fixed together by bolts, thereby achieving a fixed connection between the first connecting seat 6 and the pod 1.

[0044] The above-mentioned mounting holes are provided in multiple numbers on both the connecting side plate and the supporting side plate, which is beneficial to increase the carrying capacity of the pod 1. In this embodiment, four mounting holes are provided.

[0045] The third connection part 8 is configured as a connection ear plate, and each third connection part 8 includes two connection ear plates arranged in parallel, and there is a distance between the two connection ear plates. Through holes are provided at the connection ear plates and the ends of the second rod 4, and the ends of the second rod 4 are inserted between the two connection ear plates. A plug screw is used to simultaneously pass through the ends of the second rod 4 and the through holes on the connection ear plates and then connected to a nut, thereby realizing the hinge connection between the second rod 4 and the first connection seat 6.

[0046] In this embodiment, the pod suspension device adapted to the stable observation of remote sensing loads further includes a second connection seat 9, which is disposed between the first rod 3 and the second rod 4 to achieve the connection between the first rod 3 and the second rod 4. Figure 2The fourth connection part 10, the fifth connection part 11 and the sixth connection part 12 are arranged on the second connection seat 9, wherein the fourth connection part 10 is used to be hinged with the second end of the second rod 4, the fifth connection part 11 is used to be hinged with the end of the first rod 3, and the sixth connection part 12 is used to be connected with the first connection part 5. The first connection part 5 is arranged on the second connection seat 9 for connecting with the free balloon 2. The first connection part 5 is arranged on the second connection seat 9, which is conducive to simplifying the structure of the first rod 3.

[0047] The fourth connection part 10 and the fifth connection part 11 are both configured as connecting ear plates, similar to the structure of the third connection part 8, and a through hole is provided at the end of the first rod 3. The fourth connection part 10 and the second rod 4 and the fifth connection part 11 and the first rod 3 are also hinged by using a plug screw and a nut, which will not be described in detail here.

[0048] In the embodiment of the present invention, the first rod 3 and the second rod 4 each include a rod body 13 and a joint bearing 14, and the joint bearing 14 is arranged at both ends of the rod body 13. The joint bearing 14 has an inner ring and an outer ring that can rotate relatively, the outer ring is relatively fixed to the end of the rod body 13, and the inner ring is used to be relatively fixed to the hinge shaft.

[0049] Specifically, the above-mentioned plug screw serves as a hinge axis for hinged connection between the first rod 3 and the second rod 4 or hinged connection between the first connecting seat 6 and the second connecting seat 9, and needs to be fixedly connected to the inner ring of the spherical bearing 14.

[0050] With such arrangement, a certain degree of freedom is provided at the above-mentioned hinged position, so that the first rod 3 and the second rod 4 not only rotate around the plug screw, but also allow the plug screw to have a certain amount of swing, which reduces the difficulty of assembly and helps to reduce the processing accuracy of the first rod 3 and the second rod 4. In addition, when the pod 1 is subjected to lateral force or the pod suspension device is subjected to impact load or even deformation, damage to the connecting ear plates of the first connecting seat 6 and the second connecting seat 9 can be avoided or alleviated.

[0051] In this embodiment, a connecting column is extended from the outer ring of the spherical bearing 14 , and an external thread is arranged on the connecting column. A threaded hole is arranged at the end of the rod body 13 so that the spherical bearing 14 and the rod body 13 are threadedly connected.

[0052] In this embodiment, the first connecting portion 5 is configured as a U-shaped component, and a shackle may be selected.

[0053] The sixth connecting portion 12 includes a connecting ear plate that can be inserted into the U-shaped member. The connecting ear plate and the U-shaped member are provided with corresponding through holes. The connecting ear plate and the U-shaped member are hinged by a pin. The axis of the pin is perpendicular to the axis of the first rod 3.

[0054] When the connecting cable 15 is connected to the first connecting portion 5, the end of the connecting cable 15 is passed through the U-shaped member and then fixed. The connecting cable 15 forms a rope ring structure and is movably connected to the U-shaped member. Figure 2 shown.

[0055] On the other hand, an embodiment of the present invention further provides an airship, comprising a pod 1, a free balloon 2, and a pod suspension device adapted for stable observation of remote sensing payloads provided in any of the above embodiments, the pod suspension device being used to connect the pod 1 to the bottom of the free balloon 2. The pod suspension device adapted for stable observation of remote sensing payloads in the above embodiments has high stability, which can alleviate the problem of rotation of the pod 1 caused by changes in the wind field. Therefore, the airship in this embodiment also has high stability, which is beneficial to ensure the accuracy of the test results of the remote sensing observation equipment carried thereon. The derivation process of the beneficial effects of the airship in the embodiment of the present invention is generally similar to the derivation process of the beneficial effects of the pod suspension device adapted for stable observation of remote sensing payloads described above, so it will not be repeated here.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pod suspension device adapted for stable observation of remote sensing payloads, characterized in that: Used to connect a pod and a free balloon, comprising a first connecting seat, a second connecting seat, a connecting cable, a first rod arranged above the pod in a horizontal direction, and a second rod arranged between the first rod and the pod; The first rod is provided with a first connection portion for connecting with the free balloon, and at least two first connection portions are provided at intervals along the axis direction of the first rod; At least two pairs of the second rods are provided, the first ends of each pair of the second rods are respectively connected to the two opposite side walls of the pod, there is a spacing between the first ends of two adjacent pairs of the second rods, the second ends of each pair of the second rods are connected to the first rod, and there is a spacing between the second ends of two adjacent pairs of the second rods; There are two first connecting parts, and the two first connecting parts are respectively located at two ends of the first rod; Two pairs of second rods are provided, the second ends of the two pairs of second rods are respectively connected to the two ends of the first rod, and the distance between the first ends of the two pairs of second rods is greater than the distance between the second ends of the two pairs of second rods; The first connecting seat is arranged between the second rod and the pod, and the first connecting seat is provided with a second connecting portion for being hinged to the pod and a third connecting portion for being hinged to the first end of the second rod; The second connecting seat is arranged between the first rod and the second rod, and the second connecting seat is provided with a fourth connecting portion for hingedly connecting to the second end of the second rod, a fifth connecting portion for hingedly connecting to the end of the first rod, and a sixth connecting portion for connecting to the first connecting portion; The first rod and the second rod each include a rod body and joint bearings arranged at both ends of the rod body, the outer ring of the joint bearing is relatively fixed to the rod body, and the inner ring of the joint bearing is arranged to be relatively fixed to the hinge shaft; The first connecting portion is a U-shaped member, the open end of the U-shaped member is hinged to the sixth connecting portion, and the hinge axis is perpendicular to the axis direction of the first rod; The connecting cables are provided with two, the first ends of the two connecting cables are movably connected to the first connecting part, and the second ends of the connecting cables are connected to the main cable of the free balloon.

2. The pod suspension device adapted for stable observation of remote sensing loads according to claim 1 is characterized in that: The first end of the second rod is hinged to the pod, and the second end of the second rod is hinged to the first rod.

3. The pod suspension device adapted for stable observation of remote sensing loads according to claim 1 is characterized in that: It also includes a connecting piece, which is used to connect the connecting cable and the main cable.

4. An aerostat, characterized in that: It comprises a pod, a free balloon and a suspension device, wherein the suspension device is used to connect the pod to the bottom of the free balloon, and the suspension device is a pod suspension device adapted for stable observation of remote sensing payloads as described in any one of claims 1 to 3.

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