CN103969845B - Polypody optics dress school heavy carrier gas over draft support arrangement - Google Patents
Polypody optics dress school heavy carrier gas over draft support arrangement Download PDFInfo
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- CN103969845B CN103969845B CN201410187153.1A CN201410187153A CN103969845B CN 103969845 B CN103969845 B CN 103969845B CN 201410187153 A CN201410187153 A CN 201410187153A CN 103969845 B CN103969845 B CN 103969845B
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Abstract
The dress school, ground that polypody optics dress school heavy carrier gas over draft support arrangement belongs to large-scale precision optical device is with micro-apart from a displacement device field, and this device comprises load bearing arm, load bearing arm bulb stud, ball-and-socket shaft assembly, main force bearing plate and three air supportings and props up support component. This device evenly has shared, by the small-sized air supporting block that three bottom surfaces are coplanar, the load-bearing pressure got off by load bearing arm bulb stud transmission, the stress that winner's force bearing plate is born is able to evenly point dispersion, therefore given full play to small-sized air supporting block process-cycle production short, easy, advantage that cost is low, and overcome the shortcoming that single small-sized air supporting block supporting capacity is limited. The distribution of three small-sized air supporting blocks takes full advantage of the stability action that determine face at 3, simultaneously, the use of multiple socket arrangement also utilizes spherical centering principle, make the mechanics of whole heavy carrier gas over draft support arrangement transmit path accurately, stable, the ground of meeting spatial optics remote sensor can debug calibration requirements completely.
Description
Technical field
The invention belongs to the dress school, ground of large-scale precision optical device with micro-distance displacement device field, it is specifically related to a kind of polypody optics dress school heavy carrier gas over draft support arrangement.
Background technology
Space optical remote sensor belongs to large-scale precision optical device, and it is before being admitted to space, it is necessary to complete to debug and testing calibration on ground in advance. Existing method adopts usually taking straight line or arc guide rail as the large-scale precision dimensional turntable of main body guiding mechanism fixes space optical remote sensor, to carry out the micro-distance displacement operation of implementation space optics remote sensor on fixed datum by large-scale precision dimensional turntable.
But, the raising day by day of mapping demand is investigated with landing ground, the volume and weight of space optical remote sensor is all increasing, the method table in traditional dress school, optics remote sensor ground, large-scale precision dimensional turntable implementation space is adopted to reveal some shortcomings, such as, when large-scale precision dimensional turntable carries out micro-distance tangential movement adjustment under the weight of space optical remote sensor, there will be creeping phenomenon, causing micro-apart from displacement location out of true, resolving power is low. Simultaneously, in order to the weight of bearing space optics remote sensor, the continuous precision guide rail that large-scale precision dimensional turntable Structure of need intensity is higher, volume is bigger, this not only significantly adds production cost and the production cycle of guide rail, also increase resetting difficulty and maintainability, therefore, traditional large-scale precision dimensional turntable the ground of meeting spatial optics remote sensor cannot debug calibration requirements gradually.
On the other hand, modularization air supporting bracing or strutting arrangement can realize the air supporting under higher bearing load and support, it is aided with micro-adjusting mechanism and can realize high precision micro-distance adjustment of displacement, but the supporting capacity of existing small-sized air supporting block is limited, and although existing large-scale air supporting block supporting capacity is big, but processing difficulties, the production cycle is long, cost height.
Summary of the invention
The ground of meeting spatial optics remote sensor calibration requirements cannot be debug gradually in order to solve existing large-scale precision dimensional turntable, simultaneously, the supporting capacity of existing small-sized air supporting block is limited, and although existing large-scale air supporting block supporting capacity is big, but processing difficulties, production cycle is long, the technical problem that cost is high, and the present invention provides a kind of polypody optics dress school heavy carrier gas over draft support arrangement.
The technical scheme that technical solution problem of the present invention is taked is as follows:
Polypody optics is debug with heavy carrier gas over draft support arrangement, it is characterized in that, this device comprises load bearing arm, load bearing arm bulb stud, ball-and-socket shaft assembly, main force bearing plate and three air supportings and props up support component, ball-and-socket shaft assembly comprises load bearing arm ball-and-socket axle, the first cap fall prevention and connection bearing, and air supporting is propped up support component and comprised fastening pad, the little axle of bulb, the 2nd cap fall prevention and air supporting block; The upper end of described load bearing arm bulb stud is screw rod, and lower end is provided with bulb, and the upper end screw rod of load bearing arm bulb stud is threaded with the screw on load bearing arm, and it is secondary that the bulb of load bearing arm bulb stud and load bearing arm ball-and-socket axle form the first sphere;
Described main force bearing plate is regular triangular prism structure, the rotation center of its upper surface is provided with central recess, each drift angle of its triangular prism upper surface equilateral triangle is respectively equipped with a drift angle through hole, and described load bearing arm ball-and-socket axle is connected by the central recess of connection bearing with main force bearing plate; Described first cap fall prevention is provided with tapped centre hole, and the diameter of this centre hole is less than the bulb diameter of load bearing arm bulb stud, and the upper surface of the first cap fall prevention and main force bearing plate is connected;
The little axle of bulb that support component is propped up in described three air supportings is each passed through a drift angle through hole of main force bearing plate, and the upper end of the little axle of bulb is connected by fastening pad and main force bearing plate, and fastening pad is connected by the upper surface of bolt and main force bearing plate; The upper surface of air supporting block is provided with ball-and-socket, and the centre hole diameter of the 2nd cap fall prevention is less than the bulb diameter of the little axle of bulb, and the 2nd cap fall prevention is connected by the upper surface of bolt and air supporting block, and it is secondary that the lower end bulb of the little axle of bulb and the ball-and-socket of air supporting block form the 2nd sphere.
The invention has the beneficial effects as follows: this polypody optics dress school heavy carrier gas over draft support arrangement evenly has shared, by the small-sized air supporting block that three bottom surfaces are coplanar, the load-bearing pressure got off by load bearing arm bulb stud transmission, the stress that winner's force bearing plate is born is able to evenly point dispersion, therefore given full play to small-sized air supporting block process-cycle production short, easy, advantage that cost is low, and overcome the shortcoming that single small-sized air supporting block supporting capacity is limited. The distribution of three small-sized air supporting blocks takes full advantage of the stability action that determine face at 3, simultaneously, the use of multiple socket arrangement also utilizes spherical centering principle, make the mechanics of whole heavy carrier gas over draft support arrangement transmit path accurately, stable, the ground of meeting spatial optics remote sensor can debug calibration requirements completely.
Accompanying drawing explanation
Fig. 1 is the stereographic map of polypody optics of the present invention dress school heavy carrier gas over draft support arrangement;
Fig. 2 is Fig. 1 side-looking axial partial sectional view.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further details.
As shown in Figure 1 to Figure 2, polypody optics dress school heavy carrier gas over draft support arrangement comprises load bearing arm 1, load bearing arm bulb stud 2, ball-and-socket shaft assembly 3, main force bearing plate 4 and three air supportings and props up support component 5, ball-and-socket shaft assembly 3 comprises load bearing arm ball-and-socket axle 3-1, the first cap fall prevention 3-2 and connection bearing 3-3, and air supporting is propped up support component 5 and comprised fastening pad 5-1, the little axle 5-2 of bulb, the 2nd cap fall prevention 5-3 and air supporting block 5-4.
The upper end of described load bearing arm bulb stud 2 is screw rod, and lower end is provided with bulb; The upper end screw rod of load bearing arm bulb stud 2 is threaded with the screw on load bearing arm 1, and it is secondary that the bulb of load bearing arm bulb stud 2 and load bearing arm ball-and-socket axle 3-1 form the first sphere.
Described main force bearing plate 4 is regular triangular prism structure, the rotation center of its upper surface is provided with central recess, each drift angle of its triangular prism upper surface equilateral triangle is respectively equipped with a drift angle through hole, and described load bearing arm ball-and-socket axle 3-1 is connected with the central recess of main force bearing plate 4 by connection bearing 3-3; Described first cap fall prevention 3-2 is provided with tapped centre hole, and the diameter of this centre hole is less than the bulb diameter of load bearing arm bulb stud 2, and the upper surface of the first cap fall prevention 3-2 and main force bearing plate 4 is connected.
During assembling, first the bulb of load bearing arm bulb stud 2 is put into load bearing arm ball-and-socket axle 3-1, secondary to form the first sphere, by tapped centre hole, the first cap fall prevention 3-2 is threaded to along the top of load bearing arm bulb stud 2 screw rod the position of undercut again, and then the upper end screw rod of load bearing arm bulb stud 2 is threaded with the screw on load bearing arm 1, finally, with bolt, the outer of the first cap fall prevention 3-2 and the upper surface of force bearing plate 4 are connected. Like this, in the process of the lifting of whole equipment and transhipment, owing to undercut is to the position-limiting action of the first cap fall prevention 3-2 so that the first cap fall prevention 3-2 cannot axial motion, under the stop of the first cap fall prevention 3-2, the bulb of load bearing arm bulb stud 2 also would not slippage from load bearing arm ball-and-socket axle 3-1.
Described three air supportings are propped up support component 5 and are small-sized air supporting block, the bulb little axle 5-2 that support component 5 is propped up in each air supporting is each passed through a drift angle through hole of main force bearing plate 4, the upper end of bulb little axle 5-2 is connected by fastening pad 5-1 and main force bearing plate 4, and fastening pad 5-1 is connected by the upper surface of bolt and main force bearing plate 4; The upper surface of air supporting block 5-4 is provided with ball-and-socket, the centre hole diameter of the 2nd cap fall prevention 5-3 is less than the bulb diameter of the little axle 5-2 of bulb, 2nd cap fall prevention 5-3 is connected by the upper surface of bolt and air supporting block 5-4, and it is secondary that the lower end bulb of bulb little axle 5-2 and the ball-and-socket of air supporting block 5-4 form the 2nd sphere. Function and the first cap fall prevention 3-2 of the 2nd cap fall prevention 5-3 are similar, and it can prevent the little axle 5-2 of bulb slippage from the ball-and-socket of air supporting block 5-4 upper surface in the lifting of whole equipment and the process transported.
When the polypody optics dress school of embody rule the present invention is with heavy carrier gas over draft support arrangement, first described device is placed on high accuracy platform 6, and ventilate to each air supporting block 5-4 with gas source, under air pressure effect, one layer of air film can be formed between each air supporting block 5-4 and the high accuracy platform below himself 6, thus air supporting block 5-4 is floated, producing a direct ratio in the lift of gas F of air pressure, lift of gas F concentrates in the 2nd sphere pair that the ball-and-socket acting on the little axle 5-2 of this bulb and air supporting block 5-4 formed simultaneously. Three air supportings are propped up support component 5 and are uniformly distributed in 120 ��, from 3 coplanar principles, three the 2nd sphere pairs uniquely determine main force bearing plate 4 and the position of load bearing arm ball-and-socket axle 3-1, and are concentrated by the lift of gas F of each air supporting block 5-4 and be applied on load bearing arm ball-and-socket axle 3-1, make a concerted effort for 3F.
Described bulb stud is that sphere pair is connected with ball-and-socket axle, described ball-and-socket axle is with main force bearing plate for rotating secondary connection, and after the gas source of air supporting block 5-4 is closed, between air supporting block 5-4 and high accuracy platform 6, air film disappears, under gravity, three air supportings are propped up support component 5 and are fitted with high accuracy platform 6. When load bearing arm bulb stud 2 is any angle with main force bearing plate 4, load bearing arm 1 still can realize moving up and down along the axis of load bearing arm bulb stud 2 or rotating along this axis by rotating screw thread, it can be seen that polypody optics is debug and can be realized load bearing arm multifreedom motion with heavy carrier gas over draft support arrangement.
This polypody optics dress school heavy carrier gas over draft support arrangement evenly has shared, by the small-sized air supporting block that three bottom surfaces are coplanar, the load-bearing pressure got off by load bearing arm bulb stud transmission, the stress that winner's force bearing plate is born is able to evenly point dispersion, therefore given full play to small-sized air supporting block process-cycle production short, easy, advantage that cost is low, and overcome the shortcoming that single small-sized air supporting block supporting capacity is limited. The distribution of three small-sized air supporting blocks takes full advantage of the stability action that determine face at 3, simultaneously, the use of multiple socket arrangement also utilizes spherical centering principle, make the mechanics of whole heavy carrier gas over draft support arrangement transmit path accurately, stable, the ground of meeting spatial optics remote sensor can debug calibration requirements completely.
Claims (1)
1. polypody optics is debug with heavy carrier gas over draft support arrangement, it is characterized in that, this device comprises load bearing arm (1), load bearing arm bulb stud (2), ball-and-socket shaft assembly (3), main force bearing plate (4) and three air supportings and props up support component (5), ball-and-socket shaft assembly (3) comprises load bearing arm ball-and-socket axle (3-1), the first cap fall prevention (3-2) and connection bearing (3-3), and air supporting is propped up support component (5) and comprised fastening pad (5-1), the little axle of bulb (5-2), the 2nd cap fall prevention (5-3) and air supporting block (5-4); The upper end of described load bearing arm bulb stud (2) is screw rod, lower end is provided with bulb, the upper end screw rod of load bearing arm bulb stud (2) is threaded with the screw on load bearing arm (1), and it is secondary that the bulb of load bearing arm bulb stud (2) and load bearing arm ball-and-socket axle (3-1) form the first sphere;
Described main force bearing plate (4) is regular triangular prism structure, the rotation center of its upper surface is provided with central recess, each drift angle of its triangular prism upper surface equilateral triangle is respectively equipped with a drift angle through hole, and described load bearing arm ball-and-socket axle (3-1) is connected by the central recess of connection bearing (3-3) with main force bearing plate (4); Described first cap fall prevention (3-2) is provided with tapped centre hole, the diameter of this centre hole is less than the bulb diameter of load bearing arm bulb stud (2), and the first cap fall prevention (3-2) is connected with the upper surface of main force bearing plate (4);
Described three air supportings are propped up support component (5) and are small-sized air supporting block, the little axle of the bulb (5-2) that support component (5) is propped up in three air supporting is each passed through a drift angle through hole of main force bearing plate (4), the upper end of the little axle of bulb (5-2) is connected by fastening pad (5-1) and main force bearing plate (4), and fastening pad (5-1) is connected by the upper surface of bolt and main force bearing plate (4); The upper surface of air supporting block (5-4) is provided with ball-and-socket, the centre hole diameter of the 2nd cap fall prevention (5-3) is less than the bulb diameter of the little axle of bulb (5-2), 2nd cap fall prevention (5-3) is connected by the upper surface of bolt and air supporting block (5-4), and it is secondary that the lower end bulb of the little axle of bulb (5-2) and the ball-and-socket of air supporting block (5-4) form the 2nd sphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410187153.1A CN103969845B (en) | 2014-05-05 | 2014-05-05 | Polypody optics dress school heavy carrier gas over draft support arrangement |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410187153.1A CN103969845B (en) | 2014-05-05 | 2014-05-05 | Polypody optics dress school heavy carrier gas over draft support arrangement |
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| Publication Number | Publication Date |
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| CN103969845A CN103969845A (en) | 2014-08-06 |
| CN103969845B true CN103969845B (en) | 2016-06-01 |
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| CN106143955A (en) * | 2016-07-11 | 2016-11-23 | 上海卫星装备研究所 | A kind of heavy load high-precise synchronization support system for three-axis air-bearing table |
| CN113967924B (en) * | 2021-10-28 | 2024-02-09 | 郑州轻工业大学 | Self-adaptive compliance characteristic test analysis platform for thin-wall fragile part operation manipulator |
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| US5949593A (en) * | 1998-03-16 | 1999-09-07 | Eastman Kodak Company | Off-loaded strut joint mirror support system |
| CN2480870Y (en) * | 2001-05-09 | 2002-03-06 | 扬博企业股份有限公司 | Base board air floating type carrying platform |
| CN102565997B (en) * | 2012-01-20 | 2013-10-23 | 中国科学院上海技术物理研究所 | High-precision focusing device used for space optical remote sensing instrument |
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