Multidimensional vibration-isolating apparatus

Abstract

The invention relates to a vibration isolation device, in particular to a multi-dimensional vibration isolation device which consists of two Stewart mechanisms with cylinders and an upper platform and a lower platform. The vibration isolation device has six degrees of freedom and can perform multi-dimensional vibration isolation. The Stewart mechanisms consist of a movable platform, a static platform and 6 legs, and the legs of the Stewart mechanisms consist of a spring seat, a spring, a cylinder and a piston from top to bottom as shown in Figure 1. The cylinder is provided with an upper gas outlet and a lower gas outlet. The movable platform is arranged on the upper part of the Stewart mechanisms, and the static platform is arranged on the lower part thereof. The movable platform and the static platform are fixedly connected with the upper plane and the lower plane of the two Stewart mechanisms respectively as shown in Figure 2. The vibration isolation device can be applied to means of transport such as vehicles, ships and the like, and is mainly used for protecting the transported objects such as anti-vibration on a sickbed of an ambulance.

Description

technical field [0001] The patent of the present invention relates to a vibration isolation device, in particular to a multi-dimensional vibration isolation device composed of two Stewart mechanisms with cylinders and upper and lower platforms. It can be used in transportation tools such as vehicles and ships, and its main function is to protect the transported objects, such as anti-vibration for ambulance beds. Background technique [0002] Vehicles and ships will inevitably vibrate during operation. At present, ambulance beds mainly rely on bedding to buffer vibration, and the effect is not ideal. Chinese patent CN2374165 (announcement number) discloses a medical ambulance stretcher vibration damping device, which utilizes a multi-rod mechanism and a cylinder to achieve vibration damping. The main problems in this patent are: (1) the structure is more complicated, (2) for reducing The effect of vibration in one direction is better, but the effect is not ideal for reducin...

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Problems solved by technology

At present, ambulance beds mainly rely on bedding to buffer vibration, and the effect is not ideal

Chinese patent CN2374165 (announcement number) discloses a medical ambulance stretcher vibration damping device, which utilizes a multi-rod mechanism and a cylinder to achieve vibration damping. The main problems in this patent are: (1) the structure is more complicated, (2) for reducing The vibration effect in one direction is better, but the effect is not ideal for reducing the complex vibration of movement and rotation in different directions

[0003] Japanese patent (patent application number: Tokuhara flat 6-184894, publication number: Tokkai flat 8-47510) discloses a kind of anti-vibration stretcher bed, which utilizes a four-bar mechanism and two magnets for vibration isolation. The main problems in this patent are: A better vibration reduction effect will be achieved along the direction connecting the two magnetic poles, while the vibration reduction effect in other directions is not ideal

[0004] Chinese patent CN1251292 discloses an anti-vibration frame for ambulances, which utilizes a three-layer structure to implement vibration reduction. The main problems in this patent are: the structure is very complicated, the manufacture is difficult, the cost is high, and the vibration reduction effect on mobile vibration is good. And the ability to reduce the rotary vibration is weak

[0005] All in all, the device disclosed in the above-mentioned patent has a certain effect on anti-vibration and vibration reduction, but the structure is complicated, and it does not solve the problem of anti-vibration in more than three dimensions, and the technical solution used is completely different from that of the present invention.

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