CN216734830U - Small-load flexible air floatation supporting device - Google Patents
Small-load flexible air floatation supporting device Download PDFInfo
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- CN216734830U CN216734830U CN202220550795.3U CN202220550795U CN216734830U CN 216734830 U CN216734830 U CN 216734830U CN 202220550795 U CN202220550795 U CN 202220550795U CN 216734830 U CN216734830 U CN 216734830U
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Abstract
The utility model provides a small-load flexible air-flotation supporting device, wherein an adapter is fixedly arranged at the upper end of a mounting plate, a plurality of guide shafts are fixedly arranged at the lower end of the mounting plate, a plurality of guide shafts are arranged on a supporting plate, the periphery of each guide shaft is positioned in one slide hole, the upper end of each guide shaft is fixedly connected to the lower end of the mounting plate, a flexible spring is arranged at the periphery of each guide shaft and used for keeping an elastic space between the mounting plate and the supporting plate, the lower end of the supporting plate is fixedly connected to the upper end of a pressure equalizing plate through a supporting rod, and the upper end of a pressure sensor is in contact connection with the lower end of the pressure equalizing plate. According to the flexible air-floating supporting device, each guide shaft slides in the linear bearing, the clamping stagnation problem is solved, various ground influence factors of space products in the experimental process are eliminated, the flexible air-floating supporting device can be more appropriately adapted to the development trend of light spacecraft products, and the ground zero-gravity unfolding test requirements of various light spacecraft products can be met.
Description
Technical Field
The utility model belongs to the field of zero-gravity unloading air floatation support, and particularly relates to a small-load flexible air floatation support device.
Background
With the vigorous development of important aerospace engineering in China, the spacecraft is developed towards the direction of ultrahigh speed, deep space exploration and multiple functions, and the operation environment faced by the spacecraft is also worse. Especially in the aspect of deep space exploration, long-term remote operation causes that partial products of the spacecraft, including flexible solar wings, flexible antennas, camera unfolding frames and the like, have to follow the design principle of miniaturization and light weight. The product is lighter, meanwhile, the theoretical design strength of the structure of the spacecraft is greatly tested, the problem also puts higher requirements on ground tests, simulation analysis and the like of the medium and small spacecraft, and sufficient test verification must be carried out to ensure that the spacecraft can be normally unfolded and operated in an in-orbit state. The ground expansion test of the spacecraft product has uncertain factors caused by a plurality of gravities, so that even if the product does not have expansion requirements in the vertical direction, the degree of freedom in the vertical direction needs to be opened, the damage of the product caused by uncontrollable factors is avoided, and the reliability of the vertical flexible link of the zero-gravity unloading device is particularly important.
The existing air floatation supporting device is usually used for large and heavy-duty spacecraft products, partial sliding friction residues exist in the vertical direction of the existing air floatation supporting device, and for the heavy-duty spacecraft products, the friction force can be completely offset by the gravity of a spring or the products, so that the unloading precision of the products cannot be influenced. However, for light spacecraft products, the friction force caused by sliding keys and the like cannot be thoroughly eliminated, so that the air floatation supporting device has resistance and even clamping stagnation in the operation process, and the zero gravity unloading experimental result of the products is seriously influenced.
Disclosure of Invention
In view of the above, the present invention is directed to a small-load flexible air floating supporting device, so as to solve the problems that the clamping stagnation phenomenon exists during the assembly test of the air floating device in the prior art, the zero gravity unloading test result of the product is affected, and the height adjustment range of the supporting device in the traditional heavy-load mode is limited or even unadjustable.
In order to achieve the purpose, the technical scheme of the utility model is realized as follows:
a small-load flexible air-flotation supporting device comprises a mounting plate, a guide shaft, a supporting plate, a pressure equalizing plate, a pressure sensor and a bottom plate, wherein the upper end of the mounting plate is used for fixedly mounting a switching piece, the lower end of the mounting plate is fixedly mounted with the guide shaft, the number of the guide shafts is multiple, the support plate is provided with a plurality of slide holes, the periphery of each guide shaft is positioned in one slide hole, the upper end of each guide shaft is fixedly connected to the lower end of the mounting plate, the lower end of each guide shaft penetrates through the slide hole and then is fixedly provided with the anti-falling baffle plate, and the upper end of the anti-falling baffle is in contact connection with the lower end of the supporting plate, a flexible spring is arranged on the periphery of each guide shaft and used for keeping an elastic space between the mounting plate and the supporting plate, the lower end of the supporting plate is fixedly connected to the upper end of the pressure equalizing plate through a supporting rod, a pressure sensor is fixedly mounted at the upper end of the bottom plate, and the upper end of the pressure sensor is in contact connection with the lower end of the pressure equalizing plate.
Furthermore, the lower end of the pressure equalizing plate is provided with a plurality of limiting rods, the bottom plate is provided with a plurality of first through holes, the upper end of each limiting rod is fixedly connected to the lower end of the pressure equalizing plate, and each limiting rod can axially slide in one first through hole.
Furthermore, a linear bearing is installed in each sliding hole, and the periphery of each guide shaft is connected to the inner ring of the linear bearing in a sliding mode.
Furthermore, an upper end cover and a lower end cover are respectively arranged on the periphery of each guide shaft, the upper end cover and the lower end cover are symmetrically arranged, two ends of the flexible spring are respectively and fixedly connected to the lower end of the upper end cover and the upper end of the lower end cover, the periphery of each guide shaft is in threaded connection with an adjusting nut, the upper end of the upper end cover is in contact connection with the lower end of the adjusting nut, and the lower end of the lower end cover is in contact connection with the upper end of the linear bearing.
Furthermore, the lower end of the upper end cover and the upper end of the lower end cover are respectively provided with a groove, and two ends of the flexible spring are respectively installed in one groove.
Furthermore, a pressurizing screw rod is installed at the lower end of the pressure equalizing plate, and the lower end of the pressurizing screw rod is connected to the upper end of the pressure sensor in a contact mode.
Furthermore, the lower end of the bottom plate is provided with a plurality of plane air cushions, the lower end of each plane air cushion is in contact connection with a fixed position, and the upper end of each plane air cushion is fixedly connected to the lower end of the bottom plate.
Compared with the prior art, the small-load flexible air floatation supporting device has the following beneficial effects: this device sets up a plurality of guiding axles, and every guiding axle slides in linear bearing, has solved the jamming problem, has eliminated each item ground influence factor of space product among the experimentation, and the development trend of the light-dutyization of adaptation spacecraft product that can be more pertinent can satisfy the zero gravity on ground of multiple light-duty spacecraft product and expand the experimental demand.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a schematic cross-sectional view of a small-load flexible air supporting device according to an embodiment of the present invention;
FIG. 2 is a side view of a small load flexible air bearing support device according to an embodiment of the utility model.
Description of reference numerals:
1-mounting a plate; 2-a guide shaft; 3-adjusting the nut; 4-upper end cover; 5-a flexible spring; 6-lower end cover; 7-a linear bearing; 8-an anti-drop baffle; 9-a pressurizing screw; 10-a pressure equalizing plate; 11-a support bar; 12-a pressure sensor; 13-a base plate; 14-a planar air cushion; 15-a support plate; 16-limiting rod.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings, which are based on the orientations and positional relationships indicated in the drawings, and are used for convenience in describing the present invention and for simplicity in description, but do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1-2, a small-load flexible air-floating supporting device comprises a mounting plate 1, guide shafts 2, a supporting plate 15, a pressure equalizing plate 10, pressure sensors 12 and a bottom plate 13, wherein the mounting plate 1 is used for connecting adapters of different types of light spacecraft products, the air-floating supporting device can be a universal device only by processing different adapters, the lower end of the mounting plate 1 is fixedly provided with the guide shafts 2, the number of the guide shafts 2 is two, the supporting plate 15 is provided with a plurality of sliding holes, the periphery of each guide shaft 2 is positioned in one sliding hole, the upper end of each guide shaft 2 is fixedly connected to the lower end of the mounting plate 1, the lower end of each guide shaft 2 passes through the corresponding sliding hole and is fixedly provided with an anti-falling baffle 8, the upper end of each anti-falling baffle 8 is connected to the lower end of the supporting plate 15 in a contact manner, the periphery of each guide shaft 2 is provided with a flexible spring 5, the flexible springs 5 are used for keeping an elastic space between the mounting plate 1 and the supporting plate 15, the lower end of the supporting plate 15 is fixedly connected to the upper end of the pressure equalizing plate 10 through the supporting rod 11, the pressure sensor 12 is fixedly installed at the upper end of the bottom plate 13, the upper end of the pressure sensor 12 is in contact connection with the lower end of the pressure equalizing plate 10, the pressure equalizing plate 10 homogenizes load gravity above the device and then transmits the load gravity to the pressure sensor 12, data monitoring is stable and accurate, and the pressure sensor 12 is the prior art.
Two limiting rods 16 are arranged at the lower end of the pressure equalizing plate 10, a plurality of first through holes are formed in the bottom plate 13, the upper end of each limiting rod 16 is fixedly connected to the lower end of the pressure equalizing plate 10, and each limiting rod 16 can axially slide in one first through hole.
A linear bearing 7 is arranged in each sliding hole, the periphery of each guide shaft 2 is connected to the inner ring of the linear bearing 7 in a sliding mode, and the linear bearings 7 provide bending moment resistance and stable and smooth guiding for the guide shafts 2.
Every 2 peripheries of guiding axle set up an upper end cover 4 and a lower extreme cover 6 respectively, and upper end cover 4 and the mutual symmetry setting of lower extreme cover 6, the both ends of flexible spring 5 are fixed connection to the lower extreme of upper end cover 4 respectively, the upper end of lower extreme cover 6, and the peripheral threaded connection adjusting nut 3 of guiding axle 2, the upper end contact of upper end cover 4 is connected to adjusting nut 3's lower extreme, the lower extreme contact of lower extreme cover 6 is connected to linear bearing 7's upper end, adjusting nut 3 is used for carrying out height control to whole device, the staff is with the nut lapse, the spring height is unchangeable, guiding axle 2 rises, thereby realize the adjustment to the device, the suitability of device has been improved.
The upper ends of the lower end of the upper end cover 4 and the lower end cover 6 are respectively provided with a groove, two ends of the flexible spring 5 are respectively installed in one groove, the flexible spring 5 provides a stable flexible buffering function for the whole device, the upper end cover 6 and the lower end cover 6 are respectively provided with a positioning groove of the flexible spring 5, the stability of the working position of the flexible spring 5 is ensured, and the whole structure is stable.
The lower end of the pressure equalizing plate 10 is provided with a pressurizing screw 9, and the lower end of the pressurizing screw 9 is in contact connection with the upper end of a pressure sensor 12.
The lower end of the bottom plate 13 is provided with a plurality of planar air cushions 14, the lower end of each planar air cushion 14 is in contact connection with a fixed position, the upper end of each planar air cushion 14 is fixedly connected to the lower end of the bottom plate 13, and each planar air cushion 14 is any one of a rubber air bag, a rubber pad or an air bearing.
This flexible air supporting device of little load adopts two parallel straight line guiding axles 2 to lead to vertical direction, possess certain anti unbalance loading and bending moment resistance ability when guaranteeing the tiny friction of vertical direction, the jamming problem of please uninstalling under the circumstances has not only been solved, the lightweight improvement has been carried out to device itself simultaneously, very big each item ground influence factor of space product in the elimination experimentation, can satisfy the zero gravity on the ground of multiple light spacecraft product and expand experimental demand, thereby satisfy the zero gravity on the ground of multiple light spacecraft product and expand experimental demand, concrete use steps is as follows:
1) the height of the device is adjusted to the position with the required height about 1cm, the height of the adjusting nuts 3 on the two guide shafts 2 is kept basically consistent, the air bearing below the device is ventilated, and the air supply pressure is kept to be more than 0.5 MPa.
2) And checking the height condition and the interface state of each position device one by one according to the quantity of the products required by the unloading devices.
3) And connecting a signal wire of the pressure sensor 12, placing each device by value, and calibrating and zeroing the display value of the sensor.
4) The device is placed below a test product, the interface which is checked in advance on the adapter mounting plate 1 is stably and reliably connected with the product, and the unloading device can carry out sufficient gravity unloading on the tested spacecraft product in the test overtravel.
5) According to the demand of the height position of the test product, the height adjusting nut 3 is accurately adjusted, and various stresses at the hinge of the test product are further eliminated.
6) And observing display data of each sensor, enabling the upper and lower light pressure test products to generate gravity direction fluctuation, releasing the residual stress of the flexible spring 5, adjusting the adjusting nut 3 again according to the gravity unloading requirement, and completely unloading the products by gravity.
7) A zero-gravity unfolding test of the test product was carried out.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The utility model provides a flexible air supporting device of little load which characterized in that: comprises a mounting plate (1), guide shafts (2), a support plate (15), a pressure equalizing plate (10), pressure sensors (12) and a bottom plate (13), wherein the upper end of the mounting plate (1) is used for fixedly mounting a switching piece, the lower end of the mounting plate (1) is fixedly mounted with the guide shafts (2), the number of the guide shafts (2) is multiple, the support plate (15) is provided with a plurality of slide holes, the periphery of each guide shaft (2) is positioned in one slide hole, the upper end of each guide shaft (2) is fixedly connected to the lower end of the mounting plate (1), the lower end of each guide shaft (2) penetrates through the slide holes and then is fixedly mounted with an anti-falling baffle (8), the upper end of each anti-falling baffle (8) is in contact connection with the lower end of the support plate (15), the periphery of each guide shaft (2) is provided with a flexible spring (5), and the flexible springs (5) are used for keeping an elastic space between the mounting plate (1) and the support plate (15), the lower end of the supporting plate (15) is fixedly connected to the upper end of the pressure equalizing plate (10) through a supporting rod (11), a pressure sensor (12) is fixedly installed at the upper end of the bottom plate (13), and the upper end of the pressure sensor (12) is in contact connection with the lower end of the pressure equalizing plate (10).
2. The small-load flexible air-bearing support device as claimed in claim 1, wherein: the lower extreme of equalizer plate (10) sets up a plurality of gag lever posts (16), is equipped with a plurality of first through-holes on bottom plate (13), and the upper end fixed connection of every gag lever post (16) is to the lower extreme of equalizer plate (10), and every gag lever post (16) can be in a first through-hole along axial sliding.
3. The small-load flexible air-bearing support device as claimed in claim 1, wherein: a linear bearing (7) is arranged in each sliding hole, and the periphery of each guide shaft (2) is connected to the inner ring of the linear bearing (7) in a sliding mode.
4. The small-load flexible air-bearing support device as claimed in claim 3, wherein: every guiding axle (2) periphery sets up an upper end cover (4) and a lower extreme cover (6) respectively, and upper end cover (4) and lower extreme cover (6) symmetry each other set up, the both ends of flexible spring (5) are fixed connection to the lower extreme of upper end cover (4) respectively, the upper end of lower extreme cover (6), and the peripheral threaded connection adjusting nut (3) of guiding axle (2), the upper end contact of upper end cover (4) is connected to the lower extreme of adjusting nut (3), the lower extreme contact of lower extreme cover (6) is connected to the upper end of linear bearing (7).
5. The small-load flexible air-bearing support device as claimed in claim 4, wherein: the lower end of the upper end cover (4) and the upper end of the lower end cover (6) are respectively provided with a groove, and two ends of the flexible spring (5) are respectively installed in one groove.
6. The small-load flexible air-bearing support device as claimed in claim 1, wherein: the lower end of the pressure equalizing plate (10) is provided with a pressurizing screw (9), and the lower end of the pressurizing screw (9) is connected to the upper end of the pressure sensor (12) in a contact manner.
7. The small-load flexible air-bearing support device as claimed in claim 1, wherein: the lower end of the bottom plate (13) is provided with a plurality of plane air cushions (14), the lower end of each plane air cushion (14) is in contact connection with a fixed position, and the upper end of each plane air cushion (14) is fixedly connected to the lower end of the bottom plate (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220550795.3U CN216734830U (en) | 2022-03-10 | 2022-03-10 | Small-load flexible air floatation supporting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220550795.3U CN216734830U (en) | 2022-03-10 | 2022-03-10 | Small-load flexible air floatation supporting device |
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| CN216734830U true CN216734830U (en) | 2022-06-14 |
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| CN202220550795.3U Active CN216734830U (en) | 2022-03-10 | 2022-03-10 | Small-load flexible air floatation supporting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116767518A (en) * | 2023-08-25 | 2023-09-19 | 天津航天机电设备研究所 | Effective load cabin body connection unlocking mechanism with unlocking gap |
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2022
- 2022-03-10 CN CN202220550795.3U patent/CN216734830U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116767518A (en) * | 2023-08-25 | 2023-09-19 | 天津航天机电设备研究所 | Effective load cabin body connection unlocking mechanism with unlocking gap |
| CN116767518B (en) * | 2023-08-25 | 2023-11-17 | 天津航天机电设备研究所 | Effective load cabin body connection unlocking mechanism with unlocking gap |
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