Detection apparatus of number of layers of PE tube of reeling type irrigation sprinkler

Abstract

The invention, which belongs to the technical field of the reeling type irrigation sprinkler, provides a detection apparatus of the number of layers of a PE tube of a reeling type irrigation sprinkler. The detection apparatus comprises a moving plate, a static plate, a signal transmitting device, a signal receiving device, and a signal detection system. The moving plate is installed at one end of an irrigation sprinkler press lever shaft; and a press lever is installed on the press lever shaft. The position of the press lever is changed when the number of layers of a PE tube is changed; and then the moving plate position is changed because of the change of the position of the press lever. The static plate is installed on a rack of the irrigation sprinkler. The signal transmitting device and the signal receiving device are installed on the moving plate or the static plate. The signal receiving device receives different signals to output different codes; and the signal detection system determines the number of layers of the PE tube based on the codes of the signal receiving device. According to the invention, the reliability is high; real-time monitoring and displaying can be realized; and the influence by the historical parameters during the irrigation sprinkler operation process can be avoided.

Description

technical field [0001] The invention belongs to the technical field of reel type sprinkler irrigation machines, and in particular relates to a device for detecting layers of PE pipes of a reel type sprinkler irrigation machine. Background technique [0002] The reel sprinkler irrigation machine is a small and medium-sized irrigation machine with a high degree of automation and low investment per unit area. It is widely used in Northeast and Northwest my country, and its degree of automation has been continuously improved in recent years. In terms of sprinkler irrigation research, scholars at home and abroad have studied the uniformity of reel sprinkler irrigation machines. The Journal of Agricultural Machinery "Water Distribution Characteristics and Experiments of Dual-purpose Sprinkler Irrigation and Hose Irrigation Units" (No. 11, 2009) research The water distribution characteristics and influencing factors of the truss reel sprinkler irrigation with refracting nozzles and...

AI Technical Summary

Problems solved by technology

[0005] 1. The current judgment of the number of PE pipe layers depends on the length of the PE pipe unfolded at the beginning of spraying, which cannot adapt to the change of the initial unfolded length of different PE pipes;

[0006] 2. At present, the reliability of judging the number of PE pipe layers is low. The Hall switches on both sides of the winch support frame will cause errors in judging the number of PE pipe layers due to external interference or unstable detection during the entire operation of the sprinkler; When the system crashes or restarts after a power failure during the entire sprinkler operation process, it is easy to cause the loss of historical sensor information and make the later detection inaccurate

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