CN102519459A - Multi-cavity platform body for inertia sensitive components - Google Patents
Multi-cavity platform body for inertia sensitive components Download PDFInfo
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- CN102519459A CN102519459A CN2011103808191A CN201110380819A CN102519459A CN 102519459 A CN102519459 A CN 102519459A CN 2011103808191 A CN2011103808191 A CN 2011103808191A CN 201110380819 A CN201110380819 A CN 201110380819A CN 102519459 A CN102519459 A CN 102519459A
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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 to each inertia sensitive element of installing on the stage body provides reliable and stable reference for installation and support, and have good dynamic characteristic parameter, thereby a good working environment is provided for guider.
Background technology
Existing inertia sensitive element by stage body, be arranged on inertia sensitive element and the corresponding circuit board in the stage body, the external functional module that is arranged on the stage body outer wall and socket etc.What this stage body structure adopted is the stage body version that spacer flanger adds upper and lower cover.Under abominable dynamic mechanical environmental baseline such as random vibration and impact; Perhaps overlap because the resonance frequency of stage body structure is low with the frequency of operation of inertia sensitive element; Can't satisfy the higher dynamic perfromance requirement of inertia sensitive element, be difficult to guarantee the stable output and the reliably working of this guider the stage body structure.
Summary of the invention
The object of the invention provides a kind of inertia sensitive element with many types of chamber stage body; Under the situation that stage body architecture quality and volume profile did not change originally; Improve the quiet rigidity and the natural frequency of stage body structure as far as possible; Make the natural frequency of stage body structure avoid the resonance frequency and the frequency of operation of inertia type instrument, thereby satisfy the dynamic perfromance requirement of this inertia sensitive element when work, for inertia type instrument steady operation under the dynamic mechanical environment of various complicacies provides assurance.
Technical solution of the present invention:
A kind of inertia sensitive element is with many types of chamber stage body; Comprise case shell-type primary cavity, the flange that is arranged on the primary cavity lateral wall and socket; Its special character is: also comprise the sidewall die cavity that is arranged on two adjacent walls of primary cavity, and be set in place the half side wall die cavity on the sidewall that external functional module is set on the primary cavity; Said flange comprise be arranged on two between the sidewall die cavity the turning flange, be arranged on separation flange between half side wall die cavity and the external functional module, be arranged on the 4th socket on the sidewall; Said socket is arranged on the socket; Said sidewall die cavity, half side wall die cavity are provided with the cable aperture that communicates with primary cavity.
Above-mentioned stage body also comprises the diagonal ribs that is arranged in the primary cavity and links to each other 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 said triangle rib links to each other with the separation flange.
The present invention has following characteristics:
1, the present invention is on the basis of central flange, and the stage body structure is designed to the case shell-type structure be made up of a plurality of complex-shaped surface moulds, and utilizes the sidewall of each die cavity that the weak link on the stage body is carried out structure and strengthen.Thin-wall member or simple straight barrel type stage body structures such as the upper and lower cover of abandoning in the original structure form to be adopted have 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 the 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, three directions of Z.
3, the present invention utilizes and forms required functional circuit and the electrical equipment of each die cavity some guiders of layout on the stage body; Reduced the height of stage body; And shortened the mutual cable run distance between each circuit board; Reduced to say the loss of signal that brings apart from cabling, helped improving the output accuracy of guider because of long.
4, the present invention is owing to adopted above structure, so quiet rigidity resonant frequency height, light weight, the volume of stage body structure are little, easy to operate, maintainability is good.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation after the stage body among Fig. 1 horizontally rotates 180 degree;
Wherein: the 1-primary cavity, 2-turning flange, the 3-socket, 4-separates flange, 5-sidewall die cavity, the half side wall die cavity of 6-, 7-diagonal ribs, 8-socket, 9-cable aperture, 10-triangle rib, the external functional module of 11-.
Concrete implementation
Like Fig. 1, shown in Figure 2; Inertia sensitive element of the present invention is with many types of chamber stage body, the flange that comprise case shell-type primary cavity, is arranged on the primary cavity lateral wall and socket, is arranged on sidewall die cavity on two adjacent walls of primary cavity, is arranged in the primary cavity and the diagonal ribs, two triangle ribs that are arranged on external functional module both sides that link to each other with sidewall, is arranged on the half side wall die cavity on the sidewall that primary cavity is provided with external functional module; Flange comprise be arranged on two between the sidewall die cavity the turning flange, be arranged on separation flange between half side wall die cavity and the external functional module, be arranged on the 4th socket on the sidewall; Socket is arranged on the socket; Sidewall die cavity, half side wall die cavity are provided with the cable aperture that communicates with primary cavity, and wherein one side of triangle rib links to each other with the separation flange,
The version of stage body is comparatively complicated, if adopt the standard machinery job operation to waste time and energy; Thereby consider that the moulding process that it is main changes sand casting into, material selection good fluidity, the aluminum alloy materials that specific stiffness is higher.The resonance frequency of inertia sensitive element and frequency of operation are distributed in 550Hz～1430Hz scope.From accomplishing the two modal testing results of the stage body structure of processing, the natural frequency point of stage body is about 1500Hz.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; The stage body structure can satisfy the specific (special) requirements of inertia sensitive element to the dynamic characteristic parameter of its carrier, has reached design purpose.
Claims (3)
1. an inertia sensitive element is with many types of chamber stage body; Comprise case shell-type primary cavity, the flange that is arranged on the primary cavity lateral wall and socket; It is characterized in that: also comprise the sidewall die cavity that is arranged on two adjacent walls of primary cavity, and be set in place the half side wall die cavity on the sidewall that external functional module is set on the primary cavity; Said flange comprise be arranged on two between the sidewall die cavity the turning flange, be arranged on separation flange between half side wall die cavity and the external functional module, be arranged on the 4th socket on the sidewall; Said socket is arranged on the socket; Said sidewall die cavity, half side wall die cavity are provided with the cable aperture that communicates with primary cavity.
2. inertia sensitive element according to claim 1 is characterized in that with many types of chamber stage body: said stage body also comprises the diagonal ribs that is arranged in the primary cavity and links to each other with sidewall.
3. inertia sensitive element according to claim 1 and 2 is characterized in that with many types of chamber stage body: said stage body also comprises two triangle ribs that are arranged on external functional module both sides, and wherein one side of said triangle rib links to each other with the 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 true CN102519459A (en) | 2012-06-27 |
| CN102519459B 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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| CN (1) | CN102519459B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104748747A (en) * | 2013-12-31 | 2015-07-01 | 西安航天精密机电研究所 | Positioning and orientating device and method applicable to armored car |
| CN110440783A (en) * | 2019-06-21 | 2019-11-12 | 西安德讯威光电测控技术有限公司 | The split type umbrella mechanical shaking device of laser gyro |
Citations (5)
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| US20020065626A1 (en) * | 2000-01-04 | 2002-05-30 | Mccall Hiram | Micro inertial measurement unit |
| 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 |
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2011
- 2011-11-25 CN CN201110380819.1A patent/CN102519459B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020065626A1 (en) * | 2000-01-04 | 2002-05-30 | Mccall Hiram | Micro inertial measurement unit |
| 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 (1)
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| 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》, vol. 31, no. 1, 31 January 2010 (2010-01-31) * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104748747A (en) * | 2013-12-31 | 2015-07-01 | 西安航天精密机电研究所 | Positioning and orientating device and method applicable to armored car |
| 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 |
| CN110440783A (en) * | 2019-06-21 | 2019-11-12 | 西安德讯威光电测控技术有限公司 | The split type umbrella mechanical shaking device of laser gyro |
| 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 |
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| Publication number | Publication date |
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| CN102519459B (en) | 2014-03-12 |
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