CN202092829U - Universal measuring platform for mass and centroid - Google Patents
Universal measuring platform for mass and centroid Download PDFInfo
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- CN202092829U CN202092829U CN 201120158552 CN201120158552U CN202092829U CN 202092829 U CN202092829 U CN 202092829U CN 201120158552 CN201120158552 CN 201120158552 CN 201120158552 U CN201120158552 U CN 201120158552U CN 202092829 U CN202092829 U CN 202092829U
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Abstract
The utility model relates to the field of aircraft universal measurement, and in particular discloses a universal measuring platform for mass and centroid, wherein a double-platform structure is adopted, and the measurement of a member to be measured are shared with two sides; compared with former measurement equipment, the universal measuring platform for the mass and the centroid has higher universality and higher practicability, and a tripping structure which comprises slide rails, connecting rods and the like is designed between an upper platform and a lower platform so as to ensure that the above measuring platform can turn over at a required angle; and therefore, corresponding parameters are calculated to complete the measurement of the axial centroid, and once chucking is finally realized to measure the mass and the centroid in each direction of the member to be measured of different shapes with a measurement cross section within a certain range. Furthermore, two sets of sensors are installed on the edge of a base, and proper sensor equipment is selected for measurement according to different members to be measured so as to avoid the problems of repeated equipment replacement and repeated installation; and meanwhile, the matching design of a jack, a screw rod and a synchronizing mechanism ensures the secure placement of the equipment during the non-operation time of the measuring platform, and ensures that the equipment such as the sensors and the like is not damaged.
Description
Technical field
The utility model belongs to aircraft universal measurement field, is specifically related to a kind of quality barycenter measuring table.
Background technology
The modernization aircraft all is to be assembled by multi-part, and the quality of the aircraft after the assembling, barycenter measurement are the critical process in the general assembly.Measurement result is significant to the dynamic perfromance of analyzing aircraft, product lifting, transportation etc., and measuring accuracy has very big influence to the control of the whole flight attitude of aircraft and the accuracy of control, therefore, the quality barycenter measurement of exploratory flight device is very important.
The existing method of measuring the quality barycenter of aircraft:
Measure the aircraft barycenter and comprise horizontal two barycenter of measurement and axial barycenter.Existing two kinds of measurement mechanisms and method:
1. measuring table is equipped with a cover frock, divides two steps, once the aircraft that is installed is finished the measurement of quality barycenter.As shown in Figure 1a, frock is by fixed mount 32, swivel mount 33, rotating shaft 34 and sell 35 and constitute, and is installed on the test desk 36.Fixed mount 32 has a pin-and-hole, and two pin-and-holes are arranged in the swivel mount 33.
The first step is that measured piece vertically is installed on the swivel mount 33 in the frock, can record measured piece quality and horizontal two barycenter, second step was that pin 35 is extracted from pin-and-hole A and pin-and-hole C, swivel mount 33 in the rotary tooling makes measured piece along with swivel mount 33 half-twist together can be measured its axial barycenter.
But because swivel mount 33 sizes of this contact with platform measured piece are certain, can only measure the single size product of shape standard, and measurement axis need force half-twist to barycenter, be not suitable for the measurement of barycenter elongated product on the upper side.Therefore, this kind method can't satisfy the versatility of measurement.
2. a measuring table is equipped with two covers or overlaps frock more.The quality barycenter measurement that branch two steps, secondaries are installed and finish measured piece.Shown in Fig. 1 b, frock is made of Change-over frame 37, locating piece 38 and auxiliary frame 39.
The first step is installed in Change-over frame 37 on the measuring table, measured piece is installed on the Change-over frame 37 again, measures the quality and the horizontal barycenter of measured piece.
Second step pulled down measured piece from Change-over frame 37, pull down Change-over frame 37 from test desk again, substitute original Change-over frame 37 with new Change-over frame and be installed on the test desk 36, measured piece is aloft overturn 90 ° is installed on the new Change-over frame again, measures the axial barycenter of measured piece.
The bottleneck that the aircraft of great-leap-forward development faces on the quality barycenter is measured:
One, current, the aircraft model and the portion's section that need to measure the quality barycenter have about 15 kinds, and its diameter of section is in Φ 1.4m～Φ 3.35m scope, and there is lofty assembly in the cross section of part model portion section.The size difference of different model aircraft or same model aircraft difference portion section is bigger, and interface difference, quality difference, accuracy requirement difference need be that it is equipped with suitable measuring table separately.
Two, in recent years, the aircraft development is swift and violent, all kinds of model high density production, emission.For satisfying such speed of development, need high-frequency ground to use module related measurement devices.High-frequency ground use can cause the measuring equipment parts impaired, and the maintenance of equipment cycle is longer, also needs to drop into high human and material resources and financial resources.
It also is a kind of scheme that the test desk of each model is all carried out backup, unrealistic, because model is numerous, if all choose the backup test desk, need to consume more capital, and takes up an area of morely, and it is difficult to safeguard.
So the general-purpose platform that can satisfy the measurement of polytypic vehicle mass barycenter is demanded the research and development operation urgently.
Summary of the invention
It is the quality of energy measurement polytypic aircraft and the general quality barycenter measuring table of all directions barycenter that the purpose of this utility model is to provide a kind of highly versatile, disposable being installed.
The technical solution of the utility model is as follows:
A kind of general purpose vehicle quality barycenter measuring table, it comprises base, and the axis of described base is provided with guide rail and lead screw, and this lead screw is provided with slide block, this slide block is connected with an end of connecting link, is interval with sensor and lifting jack uniformly at base edge; Adjacent two lifting jack are one group, be provided with leading screw and synchronizing linkage I between two lifting jack of every group, be provided with leading screw and synchronizing linkage II between described two synchronizing linkage I, on the base limit, also be provided with handle, connect by leading screw between described synchronizing linkage II and the handle; Described base top is provided with double-deck ring texture platform, the side of every layer of platform is circular conical surface, side between the two-layer platform is provided with web joint, web joint is provided with the wind spring rotating shaft, opposite side is provided with location-plate, location-plate is provided with connecting hole, places pin position of platform locking up and down in this connecting hole; Described location-plate is connected with the other end of connecting link; The position of the lower surface respective sensor of described double-deck annular platform is provided with sensor interface.
In above-mentioned general quality barycenter measuring table: described double-decked platform comprises first platform and second platform, and the maximum of described first platform is measured radius and measured radius less than the minimum of second platform, and first platform is positioned on second platform.
In above-mentioned general quality barycenter measuring table: described double-decked platform comprises first platform and second platform, and the maximum of described first platform is measured radius and measured radius less than the minimum of second platform, and second platform is positioned on first platform.
In above-mentioned general quality barycenter measuring table: described location-plate is provided with three connecting holes, the spacing distance of connecting hole is determined according to the angle between the double-decked platform, choose a connecting hole respectively at the location-plate of both sides up and down, making can the fixedly connected location supporting rod of vertical direction by two connecting holes choosing.
In above-mentioned general quality barycenter measuring table: be fixed with sliding plate on the described slide block, which is provided with web joint, this web joint is connected with described connecting link, and described sliding plate also is fixed with supporting baffle, is fixed with support pin on this supporting baffle.
In above-mentioned general quality barycenter measuring table: on the upper surface of described double-decked platform and to be measured installation, be provided with groove, at groove inner bottom part processing through hole, in groove, be provided with contiguous block, the center of described contiguous block is provided with pin-and-hole and pin hole, and the position of described pin-and-hole and pin hole is corresponding with the lead to the hole site of groove inner bottom part.
In above-mentioned general quality barycenter measuring table: be provided with little slideway on four limits of described base sensor installation,, make the first sensor and second sensor on little slideway, slide at this little slideway first sensor and second sensor.
The beneficial effects of the utility model are: adopt two platform structures, and two-sided measurement of sharing to be measured, measuring equipment versatility more in the past, practicality are stronger; Design has been formed the structure of tumbling by slide rail, connecting link, rotating shaft etc. between last lower platform, make to go up between lower platform and can produce certain angle, utilize the horizontal projection parameter of this angle and its barycenter, can extrapolate relevant parameters, finishing axial barycenter measures, final realization once is installed, and just can record and measure the cross section is difform to be measured the interior quality of certain limit and the measurement of all directions barycenter; Further, two cover sensors are installed on the base limit, at different to be measured, selection right sensors device measuring has avoided repeating more exchange device, the problem that repeats to install; By the supporting design of lifting jack, screw mandrel, synchronizing linkage, guaranteed that the safety of equipment is placed when measuring table is not worked simultaneously, equipment such as assurance sensor are injury-free.
Description of drawings
Fig. 1 a is that a measuring table is equipped with a cover tool structure synoptic diagram in the prior art;
Fig. 1 b is that a measuring table is equipped with two covers or overlaps the tool structure synoptic diagram more in the prior art;
Fig. 2 is a understructure synoptic diagram of the present utility model;
Fig. 3 is a general quality barycenter measuring table one-piece construction synoptic diagram of the present utility model;
Fig. 4 is last lower platform plan structure synoptic diagram;
Fig. 5 is that connecting link is connected partial enlarged drawing with slide block;
Fig. 6 a is a contiguous block structure vertical view;
Fig. 6 b is the A-A cut-open view of Fig. 3;
Fig. 6 c is that first platform is installed contiguous block place structural representation;
Fig. 6 d is first platform and contiguous block scheme of installation;
Fig. 7 for when to be measured diameter hour, the synoptic diagram when the present invention works;
Fig. 8 is for when to be measured diameter greatly time the, the synoptic diagram when the present invention works.
Among the figure: 1. base; 2. guide rail; 3. lead screw; 4. slide block; 5. lifting jack; 6. first sensor; 7. second sensor; 8. little slideway; 9. leading screw; 10. synchronizing linkage I; 11. synchronizing linkage II; 12. handle; 13. second platform; 14. first platform; 15. bearing rib; 16. back-up block; 17. sensor interface; 18. location-plate; 19. connecting hole; 20. sliding plate; 21. wind spring rotating shaft; 22. web joint; 23. connecting link; 24. supporting baffle; 25. support pin; 26. ground support; 27. contiguous block; 28. pin-and-hole; 29. pin hole; 30. location supporting rod; 31. groove; 32. fixed mount; 33. swivel mount; 34. rotating shaft; 35. pin; 36. test desk; 37. Change-over frame; 38. locating piece; 39. auxiliary frame.
Embodiment
Below in conjunction with drawings and the specific embodiments the utility model is described in further detail.
As shown in Figure 2, described base 1 is the ring texture of a polygon-octagonal, fixed installation guide rail 2 on the axis of base 1, on this guide rail 2, lead screw 3 is installed, slide block 4 is installed on the lead screw 3, the outside is processed with screw thread, and these slide block 4 inboards are processed with screw thread, make slide block 4 to move on lead screw 3.Sensor is placed in centre position on base 14 limits at interval respectively, in the middle of the present embodiment, for at different measuring objects, two kinds of sensors that are used alternatingly have been designed, the first sensor 6 and second sensor 7, on corresponding limit, little slideway 8 is installed, is utilized little slideway 8 that the first sensor 6 and second sensor 7 are installed, both can be slided on little slideway 8.If use first sensor 6, then it is moved to the centre position on limit, place, same, when using second sensor 7, it is moved to the centre position on limit, place.
Centre position on 4 limits at the other interval of base 1 is placed with a lifting jack 5 respectively, fixed installation handle 12 on a limit of sensor installation.Two that four lifting jack 5 are adjacent is one group, go up between two lifting jack 5 of every group leading screw 9 is installed, install on the leading screw 9 10, two synchronizing linkage I 10 of synchronizing linkage I between leading screw 9 and synchronizing linkage II 11 are installed, leading screw 9 is installed between synchronizing linkage II 11 and handle 12.
As shown in Figure 3 and Figure 4, on base 1, utilize screw retention ground support 26 for firm this measuring table of placing.Place second platform 13 and first platform 14 by lifting jack 5 above base 1, described second platform 13 is a ring texture, and its side circular conical surface is equipped with bearing rib 15 thereon between the lower shoe.Same described first platform 14 also is a ring texture, the side also is a circular conical surface, be fixedly welded with back-up block 16 in the side of first platform 14, sensor interface 17 all is installed on the lower shoe of the upper surface of described back-up block 16 and second platform 13, and the sensing station of installing on sensor interface 17 positions and the base 1 is corresponding.The maximum of described first platform 14 is measured radius and is measured radius less than the minimum of second platform 13.
As shown in Figure 3, be welded to connect plate 22 respectively on the upper plate of first platform, 14 lower shoes, second platform 13, wind spring rotating shaft 21 is installed in the pin hole processing on the web joint 22, pin-and-hole, utilize wind spring rotating shaft 21 that upper and lower platform can be overturn around axle.In addition on the lower shoe of first platform 14 and on the upper plate of second platform 13, by screw retention two location-plates 18 are installed respectively, therefore, four location-plates 18 are just arranged between the last lower platform, 2 lower shoes that are fixed on first platform 14 are on other 2 upper plates that are fixed on second platform 13.Inside side at every location-plate 18 is processed with pin-and-hole, is processed with connecting hole 19 on the base plate of location-plate 18.
As Fig. 3 and shown in Figure 5, on the line slideway 3 of base 1, be set with slide block 4, be installed with sliding plate 20 on this slide block 4, fixed installation web joint 22 on it, pin hole processing on the web joint 22, web joint 22 is connected with an end of connecting link 23 by pin-and-hole, pin, and described connecting link 23 is positioned at the annular of lower platform, and the other end of this connecting link 23 is connected with pin by pin-and-hole with location-plate 18 on first platform 14.In the middle of the present embodiment,, on connecting link 23 place sliding plates 20, fixedly mounted supporting baffle 24, fixed installation support pin 25 on supporting baffle 24 for to connecting link 23 further supplemental support.
Shown in Fig. 3 and Fig. 6 a～Fig. 6 d, contiguous block 27 also is installed on the upper surface of first platform 14, have pin-and-hole 28 in the middle of the described contiguous block 27, the both sides of pin-and-hole 28 are processed with pin hole 29, upper surface at first platform 14 is processed with and the suitable groove 31 of contiguous block 27 shapes, and through hole also is processed in the position of groove 31 bottom respective pin hole 28 and pin hole 29.In pin hole 29, screw in pin, utilize pin hole and pin, contiguous block 27 is installed on first platform 14; Utilize the pin that carries of pin-and-hole 28 and to be measured bottom surface, connect to be measured and contiguous block; Finally, make to be measured to be connected with platform.Can position, the size of pin-and-hole 28 be done with corresponding variation according to be measured difference.
When measuring table is not worked, handle 12 on the rotating base 1 makes, make leading screw 9 rotate, because synchronizing linkage II 11 makes synchronizing linkage II 11 place leading screws 9 rotate simultaneously, again because synchronizing linkage I 10, make the leading screw 9 between two groups of lifting jack 5 rotate simultaneously, therefore make two lifting jack 5 in every group rise, when measuring table is not worked, can utilize handle 12, leading screw 9, synchronizing linkage I 10 and synchronizing linkage II 11 that lifting jack 5 is risen slightly and support lower platform.
When measuring table is worked, at first utilize the contiguous block 27 of first platform 14 that to be measured is installed and fixed, the mobile first sensor 6 or second sensor 7, make sensor just in time be positioned at sensor interface 17 belows of second platform 13, turning handle 12 makes lifting jack 5 descend, 17 of sensor interfaces that drop to second platform 13 contact with sensor 6 or 7, make whole platform by sensor support, and this state can draw quality numerical value and two horizontal barycenter numerical value of level of to be measured.As shown in Figure 6, in order to measure to be measured axial barycenter, lead screw 3 on the rotating base 1, make slide block 4 move, thereby driving connecting link 23 lifts, thereby the angle of its inclination changes, this makes the platform 14 of winning lift certain angle around wind spring rotating shaft 21, the location-plate 18 of both sides separately up and down, by connecting hole 19 and pin placement positioning pole 30 between the location-plate 18 of both sides up and down, the effect that location supporting rod 30 plays the location and supports in the process that the axial barycenter of entire product is measured, in order to guarantee that second platform 13 only bears the pressure of vertical direction at the measurement state, require location supporting rod 30 need only bear the pressure of vertical direction, for this reason, consider two angles that wheel measuring is required again, connecting hole 19 on the location-plate 18 is designed to 3, when guaranteeing the different angle of upper mounting plate upset by the position of determining three connecting holes, can find two holes to fix described location supporting rod 30, and location supporting rod 30 is in vertical state, thereby guarantees 30 pressure that bear vertical direction of location supporting rod.Fix after the location supporting rod 30, the pin of connected positioning plate 18 and connecting link 23 is taken away.Because supporting baffle 24 and support pin 25 have been installed on sliding plate 20, the connecting link 23 that is put down is able to supported.
In the process of test, we select flip angle is 10 ° and 15 °.Consider the centroid position difference of different product.And centroid position has determined the size of its turning angle, generally requires the deviation position at barycenter anomaly platform center, product upset back to be no more than 1/3 of platform radius.The correlation parameter of product to be measured by analysis, selected 10 ° and 15 ° as flip angle, therefore after determining, angle the position of three connecting holes is determined according to angle, thereby the anchor point of location supporting rod 30 in the time of finding 10 ° and 15 ° makes can both make the location supporting rod 30 that supports it keep vertical when 10 ° of first platform, 14 upsets and 15 °.
In addition as shown in Figure 7, when to be measured diameter hour, as described above, first platform 14 is on second platform 13, promptly the platform that maximum outside diameter is bigger is positioned at the below, the course of work is as mentioned above.When to be measured when big, platform and integrally upset up and down is about to pin and inserts in the connecting hole 19 of going up location-plate 18 between the lower platform, does not take out.As shown in Figure 8, make the platform 14 of winning down after the upset, second platform 13 is last, and the platform of external diameter maximum is fixed with to be measured, then in the measurement of carrying out quality and barycenter according to the above-mentioned course of work.
The to be measured product of the general first platform measuring diameter of section between Φ 1.3m～Φ 2.1m; The to be measured product of the second platform measuring diameter of section between Φ 2.8m～Φ 3.4m.
Claims (7)
1. general quality barycenter measuring table, it comprises base (1), it is the ring texture of polygon-octagonal, it is characterized in that: the axis of described base (1) is provided with guide rail (2) and lead screw (3), this lead screw (3) is provided with slide block (4), this slide block (4) is connected with an end of connecting link (23), is interval with sensor and lifting jack (5) on the limit of base (1) uniformly; Adjacent two lifting jack (5) are one group, be provided with leading screw (9) and synchronizing linkage I (10) between two lifting jack (5) of every group, be provided with leading screw (9) and synchronizing linkage II (11) between described two synchronizing linkage I (10), on base (1) limit, also be provided with handle (12), connect by leading screw (9) between described synchronizing linkage II (11) and the handle (12); Described base (1) top is provided with double-deck ring texture platform, the side of every layer of platform is circular conical surface, side between the two-layer platform is provided with web joint (22), web joint (22) is provided with wind spring rotating shaft (21), opposite side is provided with location-plate (18), location-plate (18) is provided with connecting hole (19), places pin position of platform locking up and down in this connecting hole (19); Described location-plate (18) is connected with the other end of connecting link (23); The position of the lower surface respective sensor of described double-deck annular platform is provided with sensor interface (17).
2. general quality barycenter measuring table as claimed in claim 1, it is characterized in that: described double-decked platform comprises first platform (14) and second platform (13), the maximum of described first platform (14) is measured radius and is measured radius less than the minimum of second platform (13), and first platform (14) is positioned on second platform (13).
3. general quality barycenter measuring table as claimed in claim 1, it is characterized in that: described double-decked platform comprises first platform (14) and second platform (13), the maximum of described first platform (14) is measured radius and is measured radius less than the minimum of second platform (13), and second platform (13) is positioned on first platform (14).
4. as claim 1 or 2 or 3 described general quality barycenter measuring tables, it is characterized in that: described location-plate (18) is provided with three connecting holes (19), the spacing distance of connecting hole (19) is determined according to the angle between the double-decked platform, choose a connecting hole respectively at the location-plate (18) of both sides up and down, making can the fixedly connected location supporting rod of vertical direction (30) by two connecting holes (19) of choosing.
5. as claim 1 or 2 or 3 described general quality barycenter measuring tables, it is characterized in that: be fixed with sliding plate (20) on the described slide block (4), which is provided with web joint (22), this web joint (22) is connected with described connecting link (23), described sliding plate (20) also is fixed with supporting baffle (24), is fixed with support pin (25) on this supporting baffle (24).
6. as claim 1 or 2 or 3 described general quality barycenter measuring tables, it is characterized in that: on the upper surface of described double-decked platform and to be measured installation, be provided with groove, at groove inner bottom part processing through hole, in groove, be provided with contiguous block (27), the center of described contiguous block (27) is provided with pin-and-hole (28) and pin hole (29), and the position of described pin-and-hole (28) and pin hole (29) is corresponding with the lead to the hole site of groove inner bottom part.
7. as claim 1 or 2 or 3 described general quality barycenter measuring tables, it is characterized in that: four limits of described base (1) sensor installation are provided with little slideway (8), at this little slideway (8) first sensor (6) and second sensor (7), make first sensor (6) and second sensor (7) go up and slide at little slideway (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120158552 CN202092829U (en) | 2011-05-18 | 2011-05-18 | Universal measuring platform for mass and centroid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120158552 CN202092829U (en) | 2011-05-18 | 2011-05-18 | Universal measuring platform for mass and centroid |
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| Publication Number | Publication Date |
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| CN202092829U true CN202092829U (en) | 2011-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201120158552 Expired - Lifetime CN202092829U (en) | 2011-05-18 | 2011-05-18 | Universal measuring platform for mass and centroid |
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| CN (1) | CN202092829U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788660A (en) * | 2011-05-18 | 2012-11-21 | 首都航天机械公司 | Universal mass and centroid measurement platform |
| CN107664558A (en) * | 2016-07-27 | 2018-02-06 | 北京计算机技术及应用研究所 | Inertial measuring unit centroid measurement method |
-
2011
- 2011-05-18 CN CN 201120158552 patent/CN202092829U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788660A (en) * | 2011-05-18 | 2012-11-21 | 首都航天机械公司 | Universal mass and centroid measurement platform |
| CN102788660B (en) * | 2011-05-18 | 2015-03-04 | 首都航天机械公司 | Universal mass and centroid measurement platform |
| CN107664558A (en) * | 2016-07-27 | 2018-02-06 | 北京计算机技术及应用研究所 | Inertial measuring unit centroid measurement method |
| CN107664558B (en) * | 2016-07-27 | 2020-04-21 | 北京计算机技术及应用研究所 | Centroid measuring method of inertia measuring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20111228 Effective date of abandoning: 20150304 |
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| RGAV | Abandon patent right to avoid regrant |