Pico-nano satellite zero-gravity air floating platform translation device

Abstract

The utility model relates to the technical field of aviation aircraft satellite ground simulation, in particular to a zero-gravity air floating platform translation device of a pico-nano satellite, which comprises a marble platform, and three groups of air floating bearing supporting air foot components distributed in an equilateral triangle are arranged at the top of the marble platform. An equilateral triangle supporting platform I is installed on the tops of the air bearing supporting air foot assemblies jointly, supporting columns are installed on the top of the supporting platform I in a triangular upward mode, a supporting platform II is installed on the tops of the supporting columns jointly, and a horizontal adjusting table is installed on the top of the supporting platform II through multiple sets of adjusting supporting pieces jointly. And a pico-nano satellite is mounted on the horizontal adjusting table. When the device moves, non-contact type movement is carried out, the movement convenience is improved, and meanwhile the overall stability can be kept.

Description

Technical Field

[0001] The utility model relates to the technical field of ground simulation of aviation aircraft, in particular to a zero-gravity air-floating platform translation device for a Pina satellite. Background Art

[0002] A nanosatellite is a small satellite with a mass of kilograms and based on micro-electromechanical systems (MEMS) technology. Nanosatellites generally refer to small satellites with a mass of less than 10kg, and picosatellites generally refer to small satellites with a mass of less than 1kg. Compared with large satellites, the biggest advantages of nanosatellites are low cost, short manufacturing and launch cycles, and fast emergency response. Nanosatellites have outstanding advantages such as low cost, short development cycle, and flexible launch. They can complete tasks that are difficult for a single large satellite to achieve by forming constellations, formations, or satellite groups, and have certain advantages in research and development and application.

[0003] With the development of Pina satellite and aerospace technology, Pina satellite has rapidly entered the fast lane of commercial aerospace due to its low cost, multiple satellites in one rocket, and rapid launch, making micro satellites more competitive in commercial aerospace. Generally, before Pina satellite is put into use, it needs to be subjected to ground zero gravity test to simulate its movement and air flotation. However, some existing air flotation platforms are not stable enough during mobile tests and cannot be transferred in any direction in two-dimensional directions. In addition, the cost of mobile testing is high, which is not conducive to frequent large-scale tests.

[0004] Therefore, in view of the above-mentioned problems, the present technical solution proposes a zero-gravity air-floating platform translation device for a Pina satellite. Utility Model Content

[0005] The utility model aims to provide a zero-gravity air-floating platform translation device for a Pina satellite to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a zero-gravity air-floating platform translation device for a Pina satellite, comprising a marble platform, three groups of air-floating bearing support air-foot assemblies distributed in an equilateral triangle are arranged on the top of the marble platform, an equilateral triangle support platform I is installed on the top of the air-floating bearing support air-foot assemblies, a support column is installed triangularly upward on the top of the support platform I, a support platform II is installed on the top of the support column, a horizontal adjustment platform is installed on the top of the support platform II through multiple groups of adjustment support members, a Pina satellite is installed on the horizontal adjustment platform, the horizontal angle of the horizontal adjustment platform is adjusted by adjusting the cooperation between the support members, and then the horizontal angle of the translation test of the Pina satellite is adjusted, The air-floating bearing supporting air foot assembly includes an air-floating bearing and an air-floating supporting foot. The top of the air-floating supporting foot is fixedly connected to the supporting platform I. The air-floating bearing is arranged at the bottom of the air-floating supporting foot. An air nozzle is arranged on one side of the air-floating bearing. An air pipe is connected to the outside of the air nozzle. The outside of the air pipe is connected to the main air supply pipe. By adjusting the air pressure of the high-pressure gas, the gas is transmitted to the air-floating bearing through the air pipe, and then the gas is discharged along the lower side of the air-floating bearing toward the marble platform. The pressure difference is formed between the high-pressure gas and the air, which provides upward buoyancy to adjust the gap between the air-floating bearing supporting air foot assembly and the marble platform within a certain range, that is, to achieve contactless movement during movement, thereby increasing the convenience of movement while maintaining the overall stability.

[0007] As a further solution of the utility model: the number of adjustment supports is greater than or equal to four groups.

[0008] As a further solution of the utility model: a group of air valves are commonly arranged between the air pipe and the main air supply pipe.

[0009] As a further solution of the utility model: the marble platform is a high-precision marble platform, and the platform surface is smooth and has high flatness.

[0010] As a further solution of the utility model: the adjusting support member includes an adjusting screw rod vertically penetrating the edge of the horizontal adjustment platform, the bottom end of the adjusting screw rod is fixed on the supporting platform II, and two adjusting nuts are respectively threadedly connected to the adjusting screw rod located on the upper and lower sides of the horizontal adjustment platform.

[0011] Compared with the prior art, the utility model has the following beneficial effects: by filling three groups of equilateral triangle air bearing support air foot assemblies with high pressure gas, an upward buoyancy is generated between the air bearing support air foot assemblies and the high-precision marble platform by utilizing the pressure difference generated by the high pressure gas and the air, and a certain gap is generated with the marble platform to realize the suspension of the air floating translation device, thereby offsetting the gravity of the Pina satellite and the entire device, and then simulating various tests of the satellite in the zero gravity state in the orbit state, achieving a simple structure, stable and reliable operation, and low economic cost. On the premise of solving the cost advantage of the Pina satellite ground on-orbit test, the satellite can be smoothly moved in zero gravity in any direction in two dimensions. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The figure is a schematic diagram of the main structure of a zero-gravity air-floating platform translation device for a Pina satellite.

[0013] Figure 2 The diagram is a top-down structural diagram of a zero-gravity air-floating platform translation device for a Pina satellite.

[0014] Figure 3 The present invention is a schematic diagram of the structure of an air bearing supporting air foot assembly in a translation device of a zero-gravity air floating platform of a Pina satellite.

[0015] Figure 4 This is a schematic diagram of the connection distribution structure between the air bearing and the marble platform in a zero-gravity air-floating platform translation device for a Pina satellite;

[0016] Among them: marble platform 1, air bearing support air foot assembly 2, support platform I5, support column 6, support platform II7, adjusting screw 8, adjusting nut 9, horizontal adjustment platform 10, Pina satellite 11, air pipe 12, air valve 15, air bearing 16, air support foot 17, air nozzle 18. DETAILED DESCRIPTION

[0017] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0018] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0020] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0021] See also Figure 1-3A zero-gravity air-floating platform translation device for a Pina satellite comprises a marble platform 1, three groups of air-floating bearing support air-foot assemblies 2 distributed in an equilateral triangle are arranged on the top of the marble platform 1, an equilateral triangle support platform I5 is installed on the top of the air-floating bearing support air-foot assembly 2, a support column 6 is installed triangularly upward on the top of the support platform I5, a support platform II7 is installed on the top of the support column 6, a horizontal adjustment platform 10 is installed on the top of the support platform II7 through multiple groups of adjustment support members, a Pina satellite 11 is installed on the horizontal adjustment platform 10, the horizontal angle of the horizontal adjustment platform is adjusted by adjusting the cooperation between the support members, and then the horizontal angle of the translation test of the Pina satellite 11 is adjusted, and the air-floating bearing support air-foot assembly 2 comprises an air-floating shaft The bearing 16 is connected to the air-floating support foot 17, and the top of the air-floating support foot 17 is fixedly connected to the support platform I5. The air-floating bearing 16 is arranged at the bottom of the air-floating support foot 17. An air nozzle 18 is arranged on one side of the air-floating bearing 16. The outer side of the air nozzle 18 is connected to the air pipe 12, and the outer side of the air pipe 12 is connected to the main air supply pipe. By adjusting the air pressure of the high-pressure gas, the gas is transmitted to the air-floating bearing 16 through the air pipe 12, and then the gas is discharged along the lower side of the air-floating bearing 16 toward the marble platform 1. The pressure difference is formed between the high-pressure gas and the air, which provides upward buoyancy to adjust the gap between the air-floating bearing support air foot assembly 2 and the marble platform 1 within a certain range, that is, to achieve contactless movement during movement, increase the convenience of movement, and maintain the overall stability.

[0022] In the embodiment of the present invention, the number of adjustment support members is greater than or equal to four groups, that is, to ensure that the Pina satellite 11 can remain stable when adjusting the horizontal angle;

[0023] A group of gas valves 15 are provided between the gas pipes 12 and the main gas supply pipe, and the gas valves 15 are used to control the gas to flow in the same manner between the three gas pipes 12, that is, the flow speed and pressure are kept the same, thereby controlling the gas output from the air bearing 16 to be in the same state, so as to keep the air bearing supporting the air foot assembly 2 stable, and further control the movement stability of the upper side Pina satellite 11;

[0024] In one example of the present invention, in order to ensure the stability of the device, the marble platform 1 uses a high-precision 000-level marble platform with a smooth surface and high flatness, which can generate a stable air pressure difference with the air-floating support gas foot assembly 2 to ensure the stable operation of the entire air-floating device. At the same time, the marble platform laboratory needs to be horizontally adjusted during installation and corresponding inspections are performed; the Pina satellite is light in weight, and the air-floating bearing 16 is selected with a diameter of 120 mm. By adjusting the high-pressure gas pressure, the gap between the air-floating bearing support gas foot assembly 2 and the marble platform 1 can be adjusted within the range of 400 to 500 μm.

[0025] The diameter of the air pipe 12 is 8 mm to ensure that under the control of the air valve 15, the gas in the main air supply pipe can be quickly and stably transmitted to the air bearing 16; the support platform I5 and the support platform II7 are fastened together with screws through the support column 6 to ensure height adjustment and structural stability.

[0026] As a preferred embodiment of the present invention, the adjusting support member includes an adjusting screw 8 vertically passing through the edge of the horizontal adjustment platform 10, the bottom end of the adjusting screw 8 is fixed on the supporting platform II7, and two adjusting nuts 9 are respectively threadedly connected to the adjusting screw 8 on the upper and lower sides of the horizontal adjustment platform 10. The position of the adjusting nut 9 on the adjusting screw 8 is controlled to adjust the height of the horizontal adjustment platform 10, and at the same time, a level ruler is used for detection to ensure the horizontality of the horizontal adjustment platform 10.

[0027] The above describes in detail the preferred implementation of this patent, but this patent is not limited to the above implementation. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A zero-gravity air-floating platform translation device for a Pina satellite, characterized in that: The invention comprises a marble platform (1), wherein the top of the marble platform (1) is provided with three groups of air bearing support air foot assemblies (2) distributed in an equilateral triangle, wherein the top of the air bearing support air foot assemblies (2) is jointly installed with an equilateral triangle support platform I (5), wherein the top of the support platform I (5) is triangularly upwardly installed with a support column (6), and the top of the support column (6) is jointly installed with a support platform II (7), and the top of the support platform II (7) is jointly installed with a horizontal adjustment platform (1) through multiple groups of adjustment support members. 0), a Pina satellite (11) is installed on the horizontal adjustment platform (10), the air bearing support air foot assembly (2) includes an air bearing (16) and an air support foot (17), the top of the air support foot (17) is fixedly connected to the support platform I (5), the air bearing (16) is arranged at the bottom of the air support foot (17), an air nozzle (18) is arranged on one side of the air bearing (16), the outer side of the air nozzle (18) is connected to an air pipe (12), and the outside of the air pipe (12) is connected to a main air supply pipe.

2. The zero-gravity air-floating platform translation device for a Pina satellite according to claim 1, characterized in that: The number of the adjustment supports provided is greater than or equal to four groups.

3. The zero-gravity air-floating platform translation device for a Pina satellite according to claim 2, characterized in that: A group of air valves (15) are provided between the air pipe (12) and the main air supply pipe.

4. The zero-gravity air-floating platform translation device for a Pina satellite according to claim 3, characterized in that: The marble platform (1) is a high-precision (000) grade marble platform, and the platform surface is smooth and has high flatness.

5. The zero-gravity air-floating platform translation device for a Pina satellite according to claim 4, characterized in that: The adjusting support member comprises an adjusting screw (8) vertically penetrating the edge of the horizontal adjusting platform (10), the bottom end of the adjusting screw (8) being fixed on the supporting platform II (7), and two adjusting nuts (9) being respectively threadedly connected on the adjusting screw (8) located on the upper and lower sides of the horizontal adjusting platform (10).

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