Brushless direct current motor driven network switching mechanism and application method thereof

Abstract

The invention relates to a mechanism for controlling the on-off of network ports, and provides a brushless direct current motor driven network switching mechanism and an application method thereof. The brushless direct current motor driven network switching mechanism comprises a brushless direct current motor, a cam shaft, cams, poking pieces, a net rod, a spring and a net rod shaft, wherein one end of the cam shaft is connected to a motor used for driving the cam shaft, and the other end of the cam shaft is provided with a sensor and a turntable provided with a magnet with crosswise arranged N pole and S pole; the cam shaft is provided with the cams with the equal axial spacing and angle spacing in the peripheral direction; the cams are contacted with the corresponding poking pieces provided with rollers, and the hook of each of the poking pieces is connected to the roller on the corresponding net rod. The invention has the following beneficial effects: the brushless direct current motor can accurately control the rotate direction and the rotate speed; during the process of jacking the poking pieces by the rotation of the cams, the friction is reduced, the durability and the reliability are improved; the turntable provided with the magnet is used for locating and the location is accurate; the turntable can be directly used by booting without zero adjustment.

Description

technical field [0001] The invention relates to a mechanism for controlling network port switches, in particular to a switch network mechanism driven by a DC brushless motor and an application method thereof. Background technique [0002] In the study of seabed organisms, the most commonly used method is to retrieve samples from the seabed and carry out research on scientific research ships. The biological larvae near the bottom of the seabed, due to their large size and small number, often need to filter a large amount of seawater to obtain a small amount of samples. Therefore, a large-diameter filter is generally used for sampling. This type of sampler generally has more than One network port, so it is necessary to add a mechanism to the sampler to control the opening of different network ports at different times or depths or locations. [0003] At present, MOCNESS (Multiple Opening / Closing Net and Environmental Sensing System multi-layer controllable opening and closing ...

AI Technical Summary

Problems solved by technology

The biggest disadvantage of this system is that the hydraulically driven mechanism is relatively heavy, which makes the whole set of equipment very heavy, and the leaked hydraulic oil will adhere to various parts of the equipment, resulting in the contamination of biological samples

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