Three-point-supporting shock absorption device for vehicle-mounted inertial navigation system
A vibration damping device and inertial navigation system technology, applied in non-rotational vibration suppression, navigation through speed/acceleration measurement, etc., can solve problems such as enlarging the diameter of the installation hole, increasing the stiffness of the support, and increasing the diameter of the installation hole. Universal applicability, large locking force and wide application range
Pending Publication Date: 2018-10-16
贵州航天控制技术有限公司
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Problems solved by technology
This type of structure has the advantages of simple structure and compactness, but since the damping pad and the support are located in the mounting hole of the damped body, the diameter of the mounting hole increases, especially in the case of a large locking force. In order to increase the The locking force needs to increase the rigidity of the supporter, so that the hole diameter of the mounting hole needs to be enlarged
The expansion of the mounting hole will make the shell thinner, which is not conducive to the support of the vibration damping pad, and is also not conducive to the integrated design of the product.
The existing technology is not suitable for occasions where it is not allowed to expand the installation hole diameter due to the limitation of the installation space
Method used
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[0018] A certain type of strapdown navigation product needs to install a vibration damping system at the product installation site, and requires the integrated design of the vibration damping system and the product, which can be installed once with the product. Strapdown navigation products are installed in such as figure 1 On the damping plate 5 shown. The four corners of the damping plate 5 are provided with damping assemblies. If the center hole vibration reduction scheme is adopted, the installation hole will be enlarged. Since the installation hole is closer to the product shape, increasing the installation hole will cause thin ribs to be formed on the support part of the vibration-damping pad, which is not conducive to the support of the vibration-damping pad, or even damaged Vibration pads. Therefore the technical scheme of the present application adopts three-point support mode. The support shaft 8 is glued and pressed into the support shaft fixing hole 11 of the bo...
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The invention discloses a three-point-supporting shock absorption device for a vehicle-mounted inertial navigation system. The three-point-supporting shock absorption device comprises a base (9), wherein the four corners of the base (9) are elastically connected with a shock absorption plate (5) through a shock absorption assembly (10) separately; each shock absorption assembly (10) comprises a bottom plate (7), a support shaft (8) is arranged on each bottom plate (7), a lower shock absorption pad (6) and an upper shock absorption pad (4) sleeve each support shaft (8), and each shock absorption plate (5) is clamped between the corresponding lower shock absorption pad (6) and the corresponding upper shock absorption pad (4); and a press plate (3) is arranged at the top of each support shaft(8), and connected with the top of the support shaft (8) through a screw (1). According to the three-point-supporting shock absorption device disclosed by the invention, integral design can be carried out with a shock absorption body through application for the bottom plates, bearing shafts and the press plates, so that transport and installation are benefited. Flexible arrangement and layout canbe carried out on an installation position according to the actual condition, so that space can be better utilized. According to the support scheme of the invention, a large shock absorption supportsurface and a high locking force are achieved, and the three-point-supporting shock absorption device is wide in application range and has general application significance.
Description
technical field [0001] The invention relates to a vibration damping device for a three-point supported vehicle inertial navigation system, which belongs to the technical field of vibration damping. Background technique [0002] The vehicle inertial navigation system refers to the device that the vehicle navigation system accurately locates the vehicle body's geographical location, travel speed, the angle between the vehicle body reference plane and the geographic north direction, and the pitch angle and roll angle of the horizontal plane during the driving process of the vehicle body. The vehicle inertial navigation system can guide the vehicle body to drive and provide navigation information in real time. Accurate and fast vehicle inertial navigation system has immeasurable effect and significance on practical use. It can be said that the vehicle-mounted inertial navigation system is the eyes of the vehicle-mounted system, and the vehicle-mounted inertial navigation system...
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IPC IPC(8): F16F15/08G01C21/16
CPCF16F15/08G01C21/16
Inventor 王晓强刘生攀刘玉玲
Owner 贵州航天控制技术有限公司