CN205049152U - Be used to lead 6 -degree of freedom of system damping platform - Google Patents
Be used to lead 6 -degree of freedom of system damping platform Download PDFInfo
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- CN205049152U CN205049152U CN201520793161.0U CN201520793161U CN205049152U CN 205049152 U CN205049152 U CN 205049152U CN 201520793161 U CN201520793161 U CN 201520793161U CN 205049152 U CN205049152 U CN 205049152U
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Abstract
The utility model discloses a be used to lead 6 -degree of freedom of system damping platform, including moving platform and quiet platform, move and evenly be equipped with a plurality of groups respectively on platform and the quiet platform and move platform hinge group and quiet platform hinge group, wherein, adjacent contained angle that the center formed that moves platform hinge group and move the platform and adjacent quiet platform hinge group are 120 degrees with the contained angle that the center formed of quiet platform, move platform hinge group and organize the distribution that misplaces with quiet platform hinge, move platform hinge group including first hinge seat and A second hinge seat, quiet platform hinge group is including third hinge seat and fourth hinge seat, all be connected through the spring damping shock absorber between first hinge seat and the nearest fourth hinge seat and between A second hinge seat and the nearest third hinge seat, all pass through universal hinge swing joint between first hinge seat, A second hinge seat, third hinge seat and fourth hinge seat and the spring damping shock absorber.
Description
Technical field
The utility model relates to multi-degree of freedom vibration reduction platform, specifically, relates to a kind of inertial navigation system six degree of freedom vibration reduction platform.
Background technology
Inertial navigation system (INS, InertialNavigationSystem), also referred to as inertial reference system, is the autonomic navigation system that one does not rely on external information, not externally emittance (as radio navigation) yet.Round-the-clockly fulltimely can work in aerial, ground, and even, data updating rate is high, short-term accuracy and good stability under water.The basic functional principle of inertial navigation is based on Newton mechanics law, by measuring the acceleration of carrier at inertial reference system, it is carried out integration to the time, and it is transformed in navigational coordinate system, just can obtain the information such as the speed in navigational coordinate system, crab angle and position, thus reach the object to carrier navigator fix.Compared with conventional flex strapdown inertial navigation system, the positional precision of laser gyro strap down inertial navigation and velocity accuracy all improve a more than order of magnitude, and it is shorter to have setup time, the calibration cycle is longer, safeguards more convenient, lower to the requirement of environmental baseline, longer service life, wide dynamic range, starts rapidly, the advantage such as temperature characterisitic and good environmental adaptability, is therefore used widely.
Inertial navigation system is very important exact instrument in naval vessel, require higher to its safety and reliability, under inertial navigation system should be operated in the condition of thump (as under attack in naval vessel, collide), under being operated in the condition of little impact (stormy waves as at ordinary times) again, job specification is more special, needs vibration reduction platform to meet following requirement: during thump, in order to ensure the safety of inertial navigation system, slow down impact, require the damping capacity that vibration reduction platform provides enough; During little impact, in order to ensure the accuracy of inertial navigation system measurement result, require the rigidity that vibration reduction platform keeps enough; But existing vibration reduction platform but cannot meet these requirements.
So, enough rigidity can be kept when developing a kind of use, the vibration reduction platform of enough damping capacitys can be provided, just become the problem that insider needs solution badly.
Utility model content
For the problem in correlation technique, the utility model proposes a kind of inertial navigation system six degree of freedom vibration reduction platform, enough rigidity can not only be kept during use, but also enough damping capacitys can be provided.
For realizing above-mentioned technical purpose, the technical solution of the utility model is achieved in that
A kind of inertial navigation system six degree of freedom vibration reduction platform, comprise moving platform and silent flatform, it is characterized in that, described moving platform and described silent flatform are evenly provided with some groups of moving platform hinge set and silent flatform hinge set respectively, wherein, the angle that the center of the angle that adjacent described moving platform hinge set and the center of described moving platform are formed and adjacent described silent flatform hinge set and described silent flatform is formed is 120 degree, and described moving platform hinge set and described silent flatform hinge set are dislocatedly distributed; Described moving platform hinge set comprises the first hinge seat and the second hinge seat; Described silent flatform hinge set comprises the 3rd hinge seat and the 4th hinge seat; All be connected by spring damping and vibration isolating device between described first hinge seat and nearest described 4th hinge seat and between described second hinge seat and nearest described 3rd hinge seat, described first hinge seat, described second hinge seat, described 3rd hinge seat and described 4th hinge seat are all flexibly connected by universal hinge with between described spring damping and vibration isolating device.
Further, described spring damping and vibration isolating device comprises piston rod and inner core, piston and urceolus is respectively equipped with inside and outside described inner core, wherein, described piston rod one end to extend in described inner core and is fastenedly connected with described piston, the described piston rod other end penetrates in described inner core and described urceolus, described inner core front end is provided with the orienting sleeve be sheathed on described piston rod, the described piston rod of described piston rear and front end is respectively equipped with piston rod bearing pad and adjusting nut, star spring and valve body is respectively equipped with between described piston rod bearing pad and described piston and between described adjusting nut and described piston, piston rod check valve sheet is provided with between described valve body and described piston, described outer barrel bottom is provided with the bottom valve valve body matched with described interior tube rear end, the rivet be connected with described bottom valve valve body is provided with in described inner core, described rivet is arranged with bottom valve spring base, and, tapered coil spring is arranged with outside described bottom valve spring base, space between described urceolus and described inner core defines atmosphere storage chamber and liquid storage chamber, and, high pressure nitrogen and vibration damping fluid is filled with respectively in described atmosphere storage chamber and described liquid storage chamber.
Further, described outer cylinder front end is arranged with dust cap, and described piston rod penetrates in described dust cap.
Further, described orienting sleeve is provided with the oil sealing be sheathed on described piston rod.
Further, the O-ring seal be sheathed on described piston rod is provided with in described valve body.
Further, described tapered coil spring bottom face contacts with described bottom valve valve body, and, be provided with bottom valve shell fragment between described tapered coil spring and described bottom valve valve body.
Further, described piston rod is provided with the step matched with described piston rod bearing pad.
The beneficial effects of the utility model: vibration reduction platform of the present utility model adopts completely passive working method completely, not by temperature, the restriction of the conditions of work such as humidity, reliability is high, structure is simple, and cost is low, and volume is little, be easy to realize batch production, by arranging rational structural parameters, fully can meet the particular/special requirement of inertial navigation system, solving the contradiction of its security and accuracy, ensure sufficient effectiveness in vibration suppression when thump, ensure that when little impact system rigidity connects.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the inertial navigation system six degree of freedom vibration reduction platform according to the utility model embodiment;
Fig. 2 is the structural representation of the spring damping and vibration isolating device according to the utility model embodiment;
Fig. 3 is the structural representation of the moving platform according to the utility model embodiment;
Fig. 4 is the structural representation of the silent flatform according to the utility model embodiment.
In figure:
1, moving platform; 2, spring damping and vibration isolating device; 3, silent flatform; 4, universal hinge; 5, dust cap; 6, urceolus; 7, inner core; 8, piston rod; 9, liquid storage chamber; 10, piston; 11, adjusting nut; 12, rivet; 13, tapered coil spring; 14, bottom valve valve body; 15, oil sealing; 16, orienting sleeve; 17, piston rod bearing pad; 18, star spring; 19, piston rod check valve sheet; 20, O-ring seal; 21, valve body; 22, bottom valve spring base; 23, bottom valve shell fragment; 24, moving platform hinge set; 25, silent flatform hinge set; 26, the first hinge seat; 27, the second hinge seat; 28, the 3rd hinge seat; 29, the 4th hinge seat; 30, atmosphere storage chamber.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, other embodiments all that those of ordinary skill in the art obtain, all belong to the scope of the utility model protection.
As Figure 1-4, a kind of inertial navigation system six degree of freedom vibration reduction platform according to embodiment of the present utility model, comprise moving platform 1 and silent flatform 3, it is characterized in that, described moving platform 1 and described silent flatform 3 are evenly provided with some groups of moving platform hinge set 24 and silent flatform hinge set 25 respectively, wherein, the angle that the center of the angle that adjacent described moving platform hinge set 24 and the center of described moving platform 1 are formed and adjacent described silent flatform hinge set 25 and described silent flatform 3 is formed is 120 degree, described moving platform hinge set 24 is dislocatedly distributed with described silent flatform hinge set 25, described moving platform hinge set 24 comprises the first hinge seat 26 and the second hinge seat 27, described silent flatform hinge set 25 comprises the 3rd hinge seat 28 and the 4th hinge seat 29, all be connected by spring damping and vibration isolating device 2 between described first hinge seat 26 and nearest described 4th hinge seat 29 and between described second hinge seat 27 and nearest described 3rd hinge seat 28, described first hinge seat 26, described second hinge seat 27, described 3rd hinge seat 28 and described 4th hinge seat 29 are all flexibly connected by universal hinge 4 with between described spring damping and vibration isolating device 2.
In one embodiment, described spring damping and vibration isolating device 2 comprises piston rod 8 and inner core 7, piston 10 and urceolus 6 is respectively equipped with inside and outside described inner core 7, wherein, described piston rod 8 one end to extend in described inner core 7 and is fastenedly connected with described piston 10, described piston rod 8 other end penetrates in described inner core 7 and described urceolus 6, described inner core 7 front end is provided with the orienting sleeve 16 be sheathed on described piston rod 8, the described piston rod 8 of described piston 10 rear and front end is respectively equipped with piston rod bearing pad 17 and adjusting nut 11, star spring 18 and valve body 21 is respectively equipped with between described piston rod bearing pad 17 and described piston 10 and between described adjusting nut 11 and described piston 10, piston rod check valve sheet 19 is provided with between described valve body 21 and described piston 10, described urceolus 6 inner bottom is provided with the bottom valve valve body 14 matched with described inner core 7 rear end, the rivet 12 be connected with described bottom valve valve body 14 is provided with in described inner core 7, described rivet 12 is arranged with bottom valve spring base 22, and, tapered coil spring 13 is arranged with outside described bottom valve spring base 22, space between described urceolus 6 and described inner core 7 defines atmosphere storage chamber 30 and liquid storage chamber 9, and, high pressure nitrogen and vibration damping fluid is filled with respectively in described atmosphere storage chamber 30 and described liquid storage chamber 9.
In one embodiment, described urceolus 6 front end sleeve is provided with dust cap 5, and described piston rod 8 penetrates in described dust cap 5.
In one embodiment, described orienting sleeve 16 is provided with the oil sealing 15 be sheathed on described piston rod 8.
In one embodiment, the O-ring seal 20 be sheathed on described piston rod 8 is provided with in described valve body 21.
In one embodiment, described tapered coil spring 13 bottom face contacts with described bottom valve valve body 14, and, be provided with bottom valve shell fragment 23 between described tapered coil spring 13 and described bottom valve valve body 14.
In one embodiment, described piston rod 8 is provided with the step matched with described piston rod bearing pad 17.
Conveniently understand technique scheme of the present utility model, below by way of in concrete use-pattern, technique scheme of the present utility model is described in detail.
When specifically using, when fluid flows through each valve, because the throttling action of valve produces damping force, play the effect of abundant vibration damping, the high pressure nitrogen between described urceolus 6 and described inner core 7 plays the object improving system response time in the whole course of work; When vibration reduction platform is subject to little impact, because fluid is limited by compression, oil liquid pressure not yet reaches the opening pressure of each valve, does not therefore produce damping, and vibration reduction platform maintaining rigidness connects; Whole vibration reduction platform by the inner each valve architecture parameter of reasonable adjusting, as described in piston rod check valve sheet 19 sectional area, described piston rod check valve sheet 19 rigidity, piston valve damping hole size, described tapered coil spring 13 rigidity, the parameters such as pre compressed magnitude, adapt to different job requirements.
In sum, by means of technique scheme of the present utility model, vibration reduction platform of the present utility model adopts completely passive working method completely, not by temperature, the restriction of the conditions of work such as humidity, reliability is high, structure is simple, and cost is low, and volume is little, be easy to realize batch production, by arranging rational structural parameters, fully can meet the particular/special requirement of inertial navigation system, solving the contradiction of its security and accuracy, ensure sufficient effectiveness in vibration suppression when thump, ensure that when little impact system rigidity connects.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (7)
1. an inertial navigation system six degree of freedom vibration reduction platform, comprise moving platform (1) and silent flatform (3), it is characterized in that, described moving platform (1) and described silent flatform (3) are evenly provided with some groups of moving platform hinge set (24) and silent flatform hinge set (25) respectively, wherein, the angle that the center of the angle that adjacent described moving platform hinge set (24) and the center of described moving platform (1) are formed and adjacent described silent flatform hinge set (25) and described silent flatform (3) is formed is 120 degree, described moving platform hinge set (24) and described silent flatform hinge set (25) are dislocatedly distributed, described moving platform hinge set (24) comprises the first hinge seat (26) and the second hinge seat (27), described silent flatform hinge set (25) comprises the 3rd hinge seat (28) and the 4th hinge seat (29), all be connected by spring damping and vibration isolating device (2) between described first hinge seat (26) and nearest described 4th hinge seat (29) and between described second hinge seat (27) and nearest described 3rd hinge seat (28), described first hinge seat (26), described second hinge seat (27), described 3rd hinge seat (28) and described 4th hinge seat (29) are all flexibly connected by universal hinge (4) with between described spring damping and vibration isolating device (2).
2. inertial navigation system six degree of freedom vibration reduction platform according to claim 1, it is characterized in that, described spring damping and vibration isolating device (2) comprises piston rod (8) and inner core (7), piston (10) and urceolus (6) is respectively equipped with inside and outside described inner core (7), wherein, described piston rod (8) one end to extend in described inner core (7) and is fastenedly connected with described piston (10), described piston rod (8) other end penetrates in described inner core (7) and described urceolus (6), described inner core (7) front end is provided with the orienting sleeve (16) be sheathed on described piston rod (8), the described piston rod (8) of described piston (10) rear and front end is respectively equipped with piston rod bearing pad (17) and adjusting nut (11), star spring (18) and valve body (21) is respectively equipped with between described piston rod bearing pad (17) and described piston (10) and between described adjusting nut (11) and described piston (10), piston rod check valve sheet (19) is provided with between described valve body (21) and described piston (10), described urceolus (6) inner bottom is provided with the bottom valve valve body (14) matched with described inner core (7) rear end, the rivet (12) be connected with described bottom valve valve body (14) is provided with in described inner core (7), described rivet (12) is arranged with bottom valve spring base (22), and, tapered coil spring (13) is arranged with outside described bottom valve spring base (22), space between described urceolus (6) and described inner core (7) defines atmosphere storage chamber (30) and liquid storage chamber (9), and, high pressure nitrogen and vibration damping fluid is filled with respectively in described atmosphere storage chamber (30) and described liquid storage chamber (9).
3. inertial navigation system six degree of freedom vibration reduction platform according to claim 2, is characterized in that, described urceolus (6) front end sleeve is provided with dust cap (5), and described piston rod (8) penetrates in described dust cap (5).
4. inertial navigation system six degree of freedom vibration reduction platform according to claim 2, is characterized in that, described orienting sleeve (16) is provided with the oil sealing (15) be sheathed on described piston rod (8).
5. inertial navigation system six degree of freedom vibration reduction platform according to claim 2, is characterized in that, is provided with the O-ring seal (20) be sheathed on described piston rod (8) in described valve body (21).
6. inertial navigation system six degree of freedom vibration reduction platform according to claim 2, it is characterized in that, described tapered coil spring (13) bottom face contacts with described bottom valve valve body (14), further, bottom valve shell fragment (23) is provided with between described tapered coil spring (13) and described bottom valve valve body (14).
7. inertial navigation system six degree of freedom vibration reduction platform according to claim 2, is characterized in that, described piston rod (8) is provided with the step matched with described piston rod bearing pad (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520793161.0U CN205049152U (en) | 2015-10-14 | 2015-10-14 | Be used to lead 6 -degree of freedom of system damping platform |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520793161.0U CN205049152U (en) | 2015-10-14 | 2015-10-14 | Be used to lead 6 -degree of freedom of system damping platform |
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| CN205049152U true CN205049152U (en) | 2016-02-24 |
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| CN201520793161.0U Expired - Fee Related CN205049152U (en) | 2015-10-14 | 2015-10-14 | Be used to lead 6 -degree of freedom of system damping platform |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736625A (en) * | 2016-03-01 | 2016-07-06 | 江苏科技大学 | Composite ship-based anti-impact stable platform and method based on six-freedom-degree parallel platform |
| CN108119731A (en) * | 2017-12-28 | 2018-06-05 | 吉林大学 | The adjustable omnidirectional's vibration-isolating platform of posture |
| CN113997272A (en) * | 2021-11-25 | 2022-02-01 | 中国核动力研究设计院 | Space six-degree-of-freedom vibration reduction platform |
| CN115290087A (en) * | 2022-08-19 | 2022-11-04 | 中国船舶重工集团公司第七0七研究所 | Dual-mode buffer base with high-precision attitude keeping function of inertial navigation system |
-
2015
- 2015-10-14 CN CN201520793161.0U patent/CN205049152U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736625A (en) * | 2016-03-01 | 2016-07-06 | 江苏科技大学 | Composite ship-based anti-impact stable platform and method based on six-freedom-degree parallel platform |
| CN108119731A (en) * | 2017-12-28 | 2018-06-05 | 吉林大学 | The adjustable omnidirectional's vibration-isolating platform of posture |
| CN113997272A (en) * | 2021-11-25 | 2022-02-01 | 中国核动力研究设计院 | Space six-degree-of-freedom vibration reduction platform |
| CN113997272B (en) * | 2021-11-25 | 2022-12-20 | 中国核动力研究设计院 | Space six-degree-of-freedom vibration reduction platform |
| CN115290087A (en) * | 2022-08-19 | 2022-11-04 | 中国船舶重工集团公司第七0七研究所 | Dual-mode buffer base with high-precision attitude keeping function of inertial navigation system |
| CN115290087B (en) * | 2022-08-19 | 2024-04-23 | 中国船舶重工集团公司第七0七研究所 | Dual-mode buffer base with high-precision gesture maintaining function for inertial navigation system |
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Granted publication date: 20160224 Termination date: 20201014 |
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| CF01 | Termination of patent right due to non-payment of annual fee |