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Damping device for inertial navigation system under mine

A technology of inertial navigation system and vibration damping device, which is used in spring/shock absorber, vibration suppression adjustment, non-rotation vibration suppression, etc.

Pending Publication Date: 2021-06-08
贵州航天凯山石油仪器有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing vibration reduction system has the disadvantage that the requirements for damping values ​​in the resonance area and the vibration isolation area are contradictory under the condition of wide-band random excitation, so further improvement is needed

Method used

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  • Damping device for inertial navigation system under mine
  • Damping device for inertial navigation system under mine
  • Damping device for inertial navigation system under mine

Examples

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Effect test

Embodiment Construction

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0020] A kind of damping device of the present invention is used for mine underground inertial navigation system, such as figure 1 As shown, it includes the base 1 and the inertial measurement module 2 in the mine underground inertial navigation system in the prior art; vibration connection; and install multi-mass dynamic vibration absorbers 4 on the four corners of the top of the inertial measurement module 2; during production, mounting holes for buffer vibration isolators are provided at the bottom of the inertial measurement module 2 and the four corners of the base 1; The buffer vibration isolator 3 is fixedly connected with the buffer vibration isolator mounting holes on the four corners of the base 1 through screws 6, flat washers 9 and nuts 10.

[0021] Such as figure 2 and image 3 As shown, the buffer vibration isolator 3 include...

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Abstract

The invention discloses a damping device for an inertial navigation system under a mine. The damping device comprises a base (1) and an inertial measurement module (2); four corners at the bottom of the inertial measurement module (2) are respectively in vibration isolation connection with the base (1) through buffering vibration isolators (3); and multi-mass dynamic vibration absorbers (4) are arranged at four corners of the top of the inertial measurement module (2). On the basis of a traditional rubber buffering vibration isolator, the multi-mass dynamic vibration absorbers are additionally arranged, effective vibration isolation on high-frequency interference is achieved, and meanwhile, the vibration reduction effect near the inherent frequency of a vibration isolation system is effectively improved. Therefore, the normal performance of the strapdown inertial measurement module in severe working environments such as broadband random vibration, impact and the like is ensured. The damping device has the advantages that the fault probability of the strapdown inertial navigation device can be effectively reduced, and the measurement precision of the strapdown inertial navigation device can be effectively improved.

Description

technical field [0001] The invention relates to a damping device used for an inertial navigation system in a mine. The invention belongs to the technical field of coal mine positioning and navigation. Background technique [0002] Strapdown inertial navigation technology is the key technology to realize high-precision navigation and positioning in mines. When the strapdown inertial navigation device works in the mine, due to the closed and narrow underground working place, the dynamic changes in the operation process are complex, and serious broadband random vibration and noise will be generated. Vibration and noise will excite the resonance peaks of many components in the SINS, affecting the measurement accuracy of the SINS and even malfunctioning. Therefore, it is necessary to set up a vibration reduction system on the strapdown inertial navigation device to improve the accuracy of positioning and navigation. The existing vibration reduction system has the disadvantage ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F15/02F16F15/08F16F15/28G01C21/18
CPCF16F15/02F16F15/085F16F15/28G01C21/18
Inventor 薛永佳赵善国孔凡康曾勇
Owner 贵州航天凯山石油仪器有限公司
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