CN105035370A - Simulator of three-axis air bearing table instrument platform - Google Patents
Simulator of three-axis air bearing table instrument platform Download PDFInfo
- Publication number
- CN105035370A CN105035370A CN201510465940.2A CN201510465940A CN105035370A CN 105035370 A CN105035370 A CN 105035370A CN 201510465940 A CN201510465940 A CN 201510465940A CN 105035370 A CN105035370 A CN 105035370A
- Authority
- CN
- China
- Prior art keywords
- platform
- cabin
- plate
- platform cabin
- bearing
- Prior art date
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- 239000003570 air Substances 0.000 title claims abstract description 43
- 229910000838 Al alloys Inorganic materials 0.000 claims abstract description 10
- 238000000926 separation method Methods 0.000 claims abstract description 9
- 239000011229 interlayers Substances 0.000 claims abstract description 6
- 210000000614 Ribs Anatomy 0.000 claims description 10
- 281000000275 Upper Deck Company companies 0.000 claims description 10
- 210000003660 Reticulum Anatomy 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound 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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G7/00—Simulating cosmonautic conditions, e.g. for conditioning crews
Abstract
Description
Technical field
The present invention relates to three-axis air-bearing table, particularly, relate to a kind of three-axis air-bearing table platform analog machine.
Background technology
The air film that the three-axis air-bearing table adopting air-floating ball bearing to support can rely on pressurized air to be formed between air floatation ball and bearing seat, simulation stage body is floated, can not only the attitude motion of analog satellite in-orbit required for three direction of principal axis, can also analog satellite three-axis attitude Coupled Dynamics.
Large-scale Optical remote satellite requires more and more higher due to its image resolution ratio, pointing accuracy, positioning precision etc., when ground adopts large-scale three-axis air-bearing table to carry out physical simulation, requires higher, need be better than 30gcm to micro-disturbance torque of three-axis air-bearing table.This just needs well-designed large-scale three-axis air-bearing table platform analog machine, not only simulate the mass propertys such as the large rotating inertia of predetermined model satellite, for emulator of participating in the experiment provides support and mounting interface, by all wt dynamic changes process to the air floatation ball being connected to platform center, and under large scale condition, ensure that less gravity elastic deformation is to reduce the change of gravity disturbance torque, guarantees the dynamics under the micro-disturbance torque state of three axles.
Through the retrieval to prior art, find application number 201310470025.3, name is called the invention of the micro-disturbance torque environment simulator being applicable to space vehicle l-G simulation test, disclose the design of large-scale three-axis air-bearing table air-floating ball bearing system and device, do not relate to the design of platform analog machine.
Li Jisu etc. are in the application (Aerospace Control of air floating table in Simulation of Satellite Control System, 2008,5th phase, 33-38 page) describe the application of three-axis air-bearing table emulator in Simulation of Satellite Control System in paper, but specifically do not provide the method for designing of air floating table platform structure.
Summary of the invention
For defect of the prior art, the object of this invention is to provide a kind of three-axis air-bearing table platform analog machine.The present invention is based on the mission requirements of three-axis air-bearing table large volume, high-mechanic, micro-disturbance torque environmental simulation, devise a kind of large-scale three-axis air-bearing table platform analog machine, adopt aluminium alloy plate and aluminum alloy frame honeycomb reinforcement hybrid architecture, alleviate own wt, promote quiet load-carrying capacity; Take into account three directions and closely wait rigid design, reduce the adverse effect of gravity disturbance torque change; By platform cabin and the design of payload module subdivision section, realize the extensibility that on star, unit and capacity weight are installed.
According to three-axis air-bearing table platform analog machine provided by the invention, comprise Bearing cylinder, platform cabin top plate, platform cabin la m, platform bilge laminate, the first platform cabin dividing plate, the second platform cabin dividing plate and load adapter plate;
Wherein, described platform cabin top plate is arranged on the top of described Bearing cylinder; Described platform bilge laminate is arranged on the bottom of described Bearing cylinder; Described platform cabin la m is arranged between described platform cabin top plate and described platform bilge laminate; Described Bearing cylinder runs through described platform bilge laminate, described platform cabin la m and described platform cabin top plate from bottom to top successively and forms platform cabin;
Described first platform cabin dividing plate is arranged between described platform cabin top plate and described platform cabin la m, thus the space between described platform cabin top plate and described platform cabin la m is divided into multiple first platform cabin separation; Described second platform cabin dividing plate is arranged between described platform bilge laminate and described platform cabin la m, thus the space between described platform bilge laminate and described platform cabin la m is divided into multiple second platform cabin separation;
Described load adapter plate connects the upper surface of described platform cabin top plate, forms load cabin.
Preferably, described Bearing cylinder adopts integrated aluminium casting, and the conical section of described Bearing cylinder is provided with observation window;
Described platform cabin top plate, described platform cabin la m and described platform cabin dividing plate adopt aluminum alloy frame and filled honeycomb interlayer reinforced structure plate is made;
Described load adapter plate adopts the aluminium alloy plate of palace lattice shape hollow out to make.
Preferably, described platform cabin top plate, described platform cabin la m and described platform bilge laminate are parallel to each other;
Described platform bilge laminate, described platform cabin la m and described platform cabin top plate all adopt polylith quadrant to be spliced;
Piece and the described platform cabin la m piece of described platform bilge laminate offset one from another in the circumferential; Piece and the described platform cabin la m piece of described platform cabin top plate offset one from another in the circumferential.
Preferably, described first platform cabin dividing plate comprises upper and lower cabin integration configuration dividing plate and upper-deck cabin dividing plate;
The outside face of described Bearing cylinder is provided with some the reinforced ribs extended vertically;
Described upper and lower cabin integration configuration dividing plate is connected described platform cabin top plate with the upper end of described upper-deck cabin dividing plate, and lower end connects described platform cabin la m, and side connects described reinforced rib;
Described second platform cabin dividing plate comprises lower cabin dividing plate;
The upper end of described lower cabin dividing plate connects described platform cabin la m, and lower end connects described platform bilge laminate, and side connects described reinforced rib.
Preferably, also truss is comprised;
One end of described truss connects described load adapter plate, and the other end connects the upper surface of described platform cabin top plate;
Described truss is for strengthening the rigidity of described load adapter plate.
Preferably, described platform cabin la m is embedded with high-pressure gas bottle mounting flange face.
Preferably, the downside of described upper and lower cabin integration configuration dividing plate is provided with synchronous jack ball-and-socket
Preferably, also comprising counterweight hangs blue;
Described counterweight hangs the blue lower surface connecting described platform bilge laminate; Described counterweight hang blue can moving radially along described platform bilge laminate;
Described counterweight hangs blue counterweight ability 0 to 120kg.
Preferably, the thickness of described platform cabin top plate and described platform cabin la m is 40mm;
Described platform cabin top plate and described platform cabin la m are than described upper-deck cabin dividing plate and described lower cabin block board thickness height 10mm.
Preferably, the envelope in described platform cabin is of a size of Ф 3400mm × 1620mm.
Compared with prior art, the present invention has following beneficial effect:
1, load-carrying capacity of the present invention is greater than 5 tons, by platform cabin and the design of load cabin subdivision section, realizes the extensibility that on star, unit and capacity weight are installed;
2, the cabin of platform described in the present invention top plate, described platform cabin la m and described platform cabin dividing plate adopt aluminum alloy frame filled honeycomb interlayer reinforced structure plate to make, three direction structures closely wait rigid design, alleviate own wt, promote quiet load-carrying capacity, and reduce the adverse effect of gravity disturbance torque change;
3, the present invention under large scale condition, the weight load on platform effectively can be delivered to be connected to platform center air floatation ball on, simulation Large-scale satellite mass property, for the full physical simulation under the micro-disturbance torque environmental conditions of three-axis air-bearing table.
Accompanying drawing explanation
By reading the detailed description done non-limiting example with reference to the following drawings, other features, objects and advantages of the present invention will become more obvious:
Fig. 1 is structural representation of the present invention;
Fig. 2 is platform cabin structure assembling schematic diagram in the present invention;
Fig. 3 is the structural representation of the load frame of platform cabin la m of the present invention and platform cabin top plate.
In figure:
Loaded cylinder centered by 1;
2 is platform cabin top plate;
3 is platform cabin la m;
4 is platform bilge laminate;
5 is upper and lower cabin integration configuration dividing plate;
6 is upper-deck cabin dividing plate;
7 is lower cabin dividing plate;
8 is load adapter plate;
9 is truss;
10 is counterweight Hanging Basket;
11 is high-pressure gas bottle mounting flange face;
12 is top board piece at equal intervals;
13 is la m piece at equal intervals;
14 is base plate piece at equal intervals;
15 is jack ball-and-socket.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art and understand the present invention further, but not limit the present invention in any form.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, some distortion and improvement can also be made.These all belong to protection scope of the present invention.
In the present embodiment, three-axis air-bearing table platform analog machine provided by the invention is divided into platform cabin and load cabin.Structure of the present invention, based on rigidity Design, takes into account static strength, stability requirement.As shown in Figure 2, three-axis air-bearing table platform analog machine provided by the invention divides upper, middle and lower-ranking flat layout, comprises Bearing cylinder, platform cabin top plate, platform cabin la m, platform bilge laminate, the first platform cabin dividing plate, the second platform cabin dividing plate and load adapter plate;
Wherein, described platform cabin top plate is arranged on the top of described Bearing cylinder; Described platform bilge laminate is arranged on the bottom of described Bearing cylinder; Described platform cabin la m is arranged between described platform cabin top plate and described platform bilge laminate; Described Bearing cylinder runs through described platform bilge laminate, described platform cabin la m and described platform cabin top plate from bottom to top successively and forms platform cabin; Described first platform cabin dividing plate is arranged between described platform cabin top plate and described platform cabin la m, thus the space between described platform cabin top plate and described platform cabin la m is divided into multiple first platform cabin separation; Described second platform cabin dividing plate is arranged between described platform bilge laminate and described platform cabin la m, thus the space between described platform bilge laminate and described platform cabin la m is divided into multiple second platform cabin separation; Described load adapter plate connects the upper surface of described platform cabin top plate, forms load cabin.Described load adapter plate provides the mounting interface with large-scale camera and clump weight, utilizes its space scale effectively can adjust the mass propertys such as the rotor inertia of stage body simulation.
Described Bearing cylinder adopts integrated aluminium casting, and the conical section of described Bearing cylinder is provided with observation window; Described platform cabin top plate, described platform cabin la m and described platform cabin dividing plate adopt aluminum alloy frame and filled honeycomb interlayer reinforced structure plate is made, and alleviates platform own wt, promotes quiet load-carrying capacity.The deadweight of platform cabin is no more than 1600kg.Described load adapter plate adopts the aluminium alloy plate of palace lattice shape hollow out to make.In order to reduce platform dead load and ensure the rigidity of structure; platform bilge laminate 4 is the thick full aluminium solid slab of the 20mm of local strengthening, while the enough rigidity of acquisition, increases counterweight in advance; the payload weight in balancing load cabin, and the collision protecting stage body and three jacks.The present invention have employed reinforcement design to the rigidity of laminate, platform cabin top plate 2 oad Φ 3400mm × 40mm, the oad Φ 3000mm × 40mm of platform cabin la m 3, the reinforcement of filled honeycomb interlayer in the design process.The upper surface of platform cabin top plate 2 and platform cabin la m 3 and the lead-covering thickness of lower surface are δ=0.5mm.The thickness of described platform cabin top plate and described platform cabin la m is 40mm; Described platform cabin top plate and described platform cabin la m are than described upper-deck cabin dividing plate and described lower cabin block board thickness height 10mm.The envelope in described platform cabin is of a size of Ф 3400mm × 1620mm.
Described platform cabin top plate, described platform cabin la m and described platform bilge laminate are parallel to each other; Described platform bilge laminate, described platform cabin la m and described platform cabin top plate all adopt polylith quadrant to be spliced; Piece and the described platform cabin la m piece of described platform bilge laminate offset one from another in the circumferential; Piece and the described platform cabin la m piece of described platform cabin top plate offset one from another in the circumferential.In the present embodiment, platform bilge laminate, platform cabin la m and platform cabin top plate are spliced by the quadrant of three pieces 120 °; Article 3, at equal intervals top board piece 12,3 at equal intervals la m piece 13 and 3 at equal intervals bottom plate piece 14 circumferentially offset one from another at platform, ensure the isotropy of integral rigidity.
Described first platform cabin dividing plate comprises upper and lower cabin integration configuration dividing plate and upper-deck cabin dividing plate; The outside face of described Bearing cylinder is provided with some the reinforced ribs extended vertically.Originally be in example, the quantity of described reinforced rib is 9.Described upper and lower cabin integration configuration dividing plate is connected described platform cabin top plate with the upper end of described upper-deck cabin dividing plate, and lower end connects described platform cabin la m, and side connects described reinforced rib; Described second platform cabin dividing plate comprises lower cabin dividing plate; The upper end of described lower cabin dividing plate connects described platform cabin la m, and lower end connects described platform bilge laminate, and side connects described reinforced rib.Bearing cylinder 1 be provided with three-layer process orchid, respectively with flange, the flange of platform cabin la m, the Flange joint of platform bilge laminate with platform cabin top plate, improve the integral rigidity of platform structure.
Three-axis air-bearing table platform analog machine provided by the invention, also comprises truss; One end of described truss connects described load adapter plate, and the other end connects the upper surface of described platform cabin top plate; Described truss is for strengthening the rigidity of described load adapter plate.Described platform cabin la m is embedded with can relative to platform center (i.e. the air supporting centre of sphere) antisymmetric high-pressure gas bottle mounting flange face.Three-axis air-bearing table platform analog machine provided by the invention is connected with air-floating ball bearing, provides the mounting interfaces such as unit that attitude measurement equipment, balancing equipment, star participate in the experiment.
The below of described upper and lower cabin integration configuration dividing plate is provided with synchronous jack ball-and-socket.
Three-axis air-bearing table platform analog machine provided by the invention, also comprises counterweight and hangs blue; Described counterweight hangs the blue lower surface connecting described platform bilge laminate; Described counterweight hang blue can moving radially along described platform bilge laminate; Described counterweight hangs blue counterweight ability 0 to 120kg.
In the present invention, instrument platform structure has the rigidity such as near in three directions, realize the barycenter drift value of gravity elastic deformation close in three directions, reduce the adverse effect of gravity disturbance torque change, meet the full physical simulation environmental conditions that large-scale three-axis air-bearing table is better than the micro-disturbance torque of 30gcm.
Three-axis air-bearing table platform analog machine provided by the invention design has certain advance and extended capability flexibly.This invention design has been applied in the development of large-scale three-axis air-bearing table.
Above specific embodiments of the invention are described.It is to be appreciated that the present invention is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (10)
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| CN105480440A (en) * | 2015-11-23 | 2016-04-13 | 上海卫星装备研究所 | Open earth simulator applied to three-axis air bearing table |
| CN105510734A (en) * | 2015-11-26 | 2016-04-20 | 中国空间技术研究院 | Satellite ground system grade electrical property verification platform |
| CN105572692A (en) * | 2015-12-16 | 2016-05-11 | 上海卫星工程研究所 | Satellite image navigation and registering full-physical testing device and testing method |
| CN105674010A (en) * | 2016-04-18 | 2016-06-15 | 上海卫星工程研究所 | Umbrella-shaped telescopic limiting protection device for three-axis air floating platform |
| CN107651221A (en) * | 2017-07-28 | 2018-02-02 | 上海宇航系统工程研究所 | The strong maneuverable spacecraft configuration of hollow big carrying |
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| CN106628259A (en) * | 2016-11-16 | 2017-05-10 | 上海卫星工程研究所 | Serial type high-rigidity integrated bearing structure |
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| CN105035370B (en) | 2017-03-29 |
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