CN102519459B - Multi-cavity platform body for inertia sensitive components - Google Patents
Multi-cavity platform body for inertia sensitive components Download PDFInfo
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- CN102519459B CN102519459B CN201110380819.1A CN201110380819A CN102519459B CN 102519459 B CN102519459 B CN 102519459B CN 201110380819 A CN201110380819 A CN 201110380819A CN 102519459 B CN102519459 B CN 102519459B
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Abstract
The invention relates to a multi-cavity platform body for inertia sensitive components, which comprises a main cavity, flanges, a socket, a sidewall cavity and a semi-sidewall cavity, wherein the flanges comprise a corner flange, a separation flange and a socket flange. Based on a middle flange, a platform body structure is designed into a casing structure formed by a plurality of complicated cavities, and sidewalls of each cavity are utilized to structurally strengthen weak links of the platform body. Upper and lower covers and other thin-wall components or a simple straight cylinder platform body structure used in an original structure are eliminated, so that the first-order resonant frequency of the platform body structure is improved, and the interference of low-frequency disturbance caused by the thin-wall vibration to the inertia sensitive components is avoided.
Description
Technical field
The present invention relates to a kind of instrument stage body, its objective is that each inertia sensitive element for installing on stage body provides reliable and stable reference for installation and support, and there is good dynamic characteristic parameter, thereby provide a good working environment for guider.
Background technology
Existing inertia sensitive element by stage body, be arranged on inertia sensitive element in stage body and corresponding circuit board, the external functional module that is arranged on stage body outer wall and socket etc.What this stage body structure adopted is that spacer flanger adds, the stage body version of lower cover.Under the severe dynamic mechanical environmental baseline such as random vibration and impact, because the resonance frequency of stage body structure is lower or overlap with the frequency of operation of inertia sensitive element, cannot meet the higher dynamic perfromance requirement of inertia sensitive element to stage body structure, be difficult to guarantee stable output and the reliably working of this guider.
Summary of the invention
The object of the invention is to provide a kind of Multi-cavity platform body for inertia sensitive components, in the situation that original stage body architecture quality and volume profile do not change, improve quiet rigidity and the natural frequency of stage body structure as far as possible, make the natural frequency of stage body structure avoid resonance frequency and the frequency of operation of inertia type instrument, thereby meet the dynamic perfromance requirement of this inertia sensitive element when work, for inertia type instrument steady operation under the dynamic mechanical environment of various complexity provides assurance.
Technical solution of the present invention:
A kind of Multi-cavity platform body for inertia sensitive components, comprise case shell-type primary cavity, the flange that is arranged on primary cavity lateral wall and socket, its special character is: also comprise the sidewall die cavity being arranged on two adjacent walls of primary cavity, and be arranged on the half sidewall die cavity being positioned on the sidewall that external functional module is set in primary cavity; Described flange comprises and is arranged on two turning flanges between sidewall die cavity, is arranged on separation flange between half sidewall die cavity and external functional module, is arranged on the 4th the socket flange on sidewall; Described socket is arranged on socket flange; Described sidewall die cavity, half sidewall die cavity are provided with the cable aperture communicating with primary cavity.
Above-mentioned stage body also comprises the diagonal ribs that is arranged in primary cavity and is connected with sidewall.
Above-mentioned stage body also comprises two triangle ribs that are arranged on external functional module both sides, and wherein one side of described triangle rib is connected with separation flange.
The present invention has following features:
1, the present invention is on the basis of central flange, stage body structure is designed to the case shell type structure that is comprised of a plurality of complex-shaped surface moulds, and utilizes the sidewall of each die cavity to carry out structural strengthening to the weak link on stage body.Abandon the thin-wall members such as upper and lower cover or the simple straight barrel type stage body structure that in original structure form, adopt, improved the single order resonance frequency of stage body structure, avoid vibrating the interference of caused low-frequency excitation to inertia sensitive element because of thin-walled.
2, the present invention utilizes stage body structure space, and reasonable Arrangement triangle rib and right-angled intersection rib, increase the product of inertia and the section factor in stage body cross section as much as possible as required, to guarantee that stage body can be consistent in the dynamic perfromance of X, Y, tri-directions of Z.
3, the present invention utilizes and on stage body, forms functional circuit and the electrical equipment that each die cavity arranges that some guiders are required, reduced the height of stage body, and shortened the mutual cable run distance between each circuit board, reduced apart from cabling, to say the loss of signal bringing because of long, be conducive to improve the output accuracy of guider.
4, the present invention is owing to having adopted above structure, thus the quiet rigidity of stage body structure and resonance frequency is high, quality is light, volume is little, easy to operate, maintainability is good.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation after the stage body horizontal rotary turnback in Fig. 1;
Wherein: 1-primary cavity, 2-turning flange, 3-socket flange, 4-separates flange, 5-sidewall die cavity, 6-half sidewall die cavity, 7-diagonal ribs, 8-socket, 9-cable aperture, 10-triangle rib, the external functional module of 11-.
Specific implementation
As shown in Figure 1 and Figure 2, Multi-cavity platform body for inertia sensitive components of the present invention, the flange that comprise case shell-type primary cavity, is arranged on primary cavity lateral wall and socket, is arranged on sidewall die cavity on two adjacent walls of primary cavity, is arranged in primary cavity and the diagonal ribs, two triangle ribs that are arranged on external functional module both sides that are connected with sidewall, is arranged on half sidewall die cavity on the sidewall that is provided with external functional module in primary cavity; Flange comprises and is arranged on two turning flanges between sidewall die cavity, is arranged on separation flange between half sidewall die cavity and external functional module, is arranged on the 4th the socket flange on sidewall; Socket is arranged on socket flange; Sidewall die cavity, half sidewall die cavity are provided with the cable aperture communicating with primary cavity, and wherein one side of triangle rib is connected with separation flange,
The version of stage body is comparatively complicated, if adopt standard machinery job operation to waste time and energy; Thereby consider to change its main moulding process into sand casting, material selection good fluidity, the aluminum alloy materials that specific stiffness is higher.Resonance frequency and the frequency of operation of inertia sensitive element are distributed within the scope of 550Hz～1430Hz.From completing the two modal testing results of the stage body structure of processing, the natural frequency point of stage body is in 1500Hz left and right.And this stage body structure has been passed through the examination of mechanical test, environmental experiment and transport test, and passed through the check of flight test, stage body structure can meet the specific (special) requirements of inertia sensitive element to the dynamic characteristic parameter of its carrier, has reached the purpose of design of expection.
Claims (1)
1. a Multi-cavity platform body for inertia sensitive components, comprise case shell-type primary cavity, the flange that is arranged on primary cavity lateral wall and socket, it is characterized in that: also comprise the sidewall die cavity being arranged on two adjacent walls of primary cavity, and be arranged on the half sidewall die cavity of installing for external functional module on primary cavity sidewall; Described flange comprises and is arranged on two turning flanges between sidewall die cavity, is arranged on separation flange between half sidewall die cavity and external functional module, is arranged on the 4th the socket flange on sidewall; Described socket is arranged on socket flange; Described sidewall die cavity, half sidewall die cavity are provided with the cable aperture communicating with primary cavity; Described stage body also comprises the diagonal ribs that is arranged in primary cavity and is connected with sidewall; Described stage body also comprises two triangle ribs that are arranged on external functional module both sides, and wherein one side of described triangle rib is connected with separation flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110380819.1A CN102519459B (en) | 2011-11-25 | 2011-11-25 | Multi-cavity platform body for inertia sensitive components |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110380819.1A CN102519459B (en) | 2011-11-25 | 2011-11-25 | Multi-cavity platform body for inertia sensitive components |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102519459A CN102519459A (en) | 2012-06-27 |
| CN102519459B true CN102519459B (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110380819.1A Active CN102519459B (en) | 2011-11-25 | 2011-11-25 | Multi-cavity platform body for inertia sensitive components |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104748747B (en) * | 2013-12-31 | 2017-11-10 | 西安航天精密机电研究所 | A kind of positioning and orienting device and method suitable for panzer |
| CN110440783B (en) * | 2019-06-21 | 2021-05-14 | 西安德讯威光电测控技术有限公司 | Split type umbrella-shaped mechanical shaking device of laser gyroscope |
Citations (4)
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|---|---|---|---|---|
| CN2775660Y (en) * | 2005-04-08 | 2006-04-26 | 北京航空航天大学 | Micro quick connection inertia measuring combined machinery skeleton |
| CN101038173A (en) * | 2007-02-07 | 2007-09-19 | 北京航空航天大学 | A implicit type structure mini inertia measurement unit |
| CN201569440U (en) * | 2009-12-01 | 2010-09-01 | 陕西华燕航空仪表有限公司 | Minitype power tuning gyro |
| CN102607549A (en) * | 2012-02-28 | 2012-07-25 | 北京航空航天大学 | Spatially diagonal damping fiber-optic gyroscope IMU (Inertial Measurement Unit) body |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6456939B1 (en) * | 2000-01-04 | 2002-09-24 | Mccall Hiram | Micro inertial measurement unit |
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- 2011-11-25 CN CN201110380819.1A patent/CN102519459B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2775660Y (en) * | 2005-04-08 | 2006-04-26 | 北京航空航天大学 | Micro quick connection inertia measuring combined machinery skeleton |
| CN101038173A (en) * | 2007-02-07 | 2007-09-19 | 北京航空航天大学 | A implicit type structure mini inertia measurement unit |
| CN201569440U (en) * | 2009-12-01 | 2010-09-01 | 陕西华燕航空仪表有限公司 | Minitype power tuning gyro |
| CN102607549A (en) * | 2012-02-28 | 2012-07-25 | 北京航空航天大学 | Spatially diagonal damping fiber-optic gyroscope IMU (Inertial Measurement Unit) body |
Non-Patent Citations (2)
| Title |
|---|
| 捷联惯性测量组合台体组件设计与分析;杨朋军等;《宇航学报》;20100131;第31卷(第1期);162-166 * |
| 杨朋军等.捷联惯性测量组合台体组件设计与分析.《宇航学报》.2010,第31卷(第1期), |
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