Semi-trailer self-travelling system, vehicle-mounted radiation detection system and use method thereof

Abstract

The invention discloses a self-travelling system used for a semi-trailer. The semi-trailer comprises a connecting end and a driven wheel, wherein the connecting end can be detachably connected onto a tractor trailer, and the driven wheel is positioned on one opposite side of the connecting end. The self-travelling system comprises a base, a driving wheel and a lifting mechanism, wherein the base is connected with a chassis of the semi-trailer; one end of the lifting mechanism is connected with the base; the other end of the lifting mechanism is connected with the driving wheel for driving the driving wheel to move between a use position and a retraction position; when on the use position, the driving wheel is positioned below the chassis of the semi-trailer to contact with the ground, and the driving wheel and the driven wheel bear the dead load of the semi-trailer; and on the retraction position, the driving wheel is positioned above the chassis of the semi-trailer. The invention also relates to a vehicle-mounted radiation detection system with the self-travelling system and a use method of the self-travelling system. According to the above technical scheme, the self-travelling system can realize a purpose of small-range transition and automatic scanning. Meanwhile, the self-travelling system can be dragged by the tractor trailer to realize the function of road driving.

Description

technical field [0001] The invention relates to a self-propelled system of a semi-trailer and a vehicle-mounted radiation detection system with the self-propelled system of the semi-trailer. In addition, the present invention also relates to a method for using the vehicle-mounted radiation detection system. Background technique [0002] In the prior art, since the beginning of the 1990s, drag-type container detection systems have come out, such as the large-scale container detection systems produced by Heyman and British Aerospace. They are installed in a radiation-shielding inspection channel, equipped with a fixed radiation source that can generate high-energy X-rays and an array detector that can receive X-rays passing through the container. The container vehicle is dragged through the inspection channel. This detection system is very large, covering an area equivalent to a football field. Correspondingly, the drag-type container inspection system in the prior art has ...

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Problems solved by technology

[0004] However, in the above-mentioned vehicle-mounted mobile container inspection equipment, the semi-trailer system is a driven trailer without any driving source, and the radiation detection device is arranged on the driven trailer, so that it can only detect moving objects, such as vehicle-mounted containers, trucks, etc. etc. for radiation scans, but not for stationary objects

[0005] In addition, although the above-mentioned semi-trailer system can achieve a large-scale transition by being connected to the tractor, it cannot achieve small-scale movement and transition when it is separated from the tractor.

Moreover, due to the large size of the tractor, it increases the inconvenience of transition and movement

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