Water turbine of a direct-connected reel sprinkler irrigation machine

Abstract

The invention provides a water turbine of a direct-connected reel sprinkler irrigation machine, which comprises a water inlet pipe, a turbine cover, an impeller, a turbine housing, a drive shaft and an outlet pipe; Cover; one end of the drive shaft is connected to the impeller, and the other end is connected to the gearbox through the turbine cover; the water inlet pipe includes a conical section and a straight section in turn, and the conical section is in the shape of an arc contraction; the water inlet pipe The central line of the water inlet of the water outlet is parallel to the horizontal direction; the water outlet pipe is straight tapered, and the angle β between the water outlet center line of the water outlet pipe and the horizontal direction is 45-50°; the blades of the impeller are cylindrical, and the blades Divided into arc segment and vertical segment. The invention adjusts the installation position of the water inlet pipe and the water outlet pipe, improves the axial flow path of the existing structure into a tangential flow path, reduces the space required for the installation of the water turbine, makes the structure more compact, and can be directly connected with the gearbox. Simplify the transmission mode, reduce the transmission loss, and achieve the goal of improving efficiency.

Description

technical field [0001] The invention belongs to the research field of water turbine mechanical devices, and in particular relates to a water turbine of a direct-connected reel sprinkler irrigation machine. Background technique [0002] Since the reel sprinkler was introduced into my country in the 1970s, it has been widely used in my country because of its compact structure, convenient transportation, simple operation, good irrigation effect and high degree of intelligence, especially in the main crop production areas in northern my country. At this stage, the driving device of the reel sprinkler irrigation machine used in our country is mainly hydraulic drive type. [0003] During the working process of the hydraulic-driven reel sprinkler, the energy of the reel recovery hose is provided by the water turbine through the transmission mechanism. The transmission types include chain drive, belt drive and gear drive. In this process, the transmission loss is very considerable....

AI Technical Summary

Problems solved by technology

In 2015, Xu Laixuan and others invented the utility model patent "Water Turbine for Reel Sprinkler Irrigation Machine", the patent number is CN204327389U, which discloses a water turbine for reel type sprinkler irrigation machine. It mainly describes the structure of the turbine shell and the blade adjustment rod. The blade adjustment rod is designed so that the sprinkler can adjust the output torque under the condition of constant water pressure, but the adjustment is more cumbersome, and the blade is not optimized, which does not reflect the lifting efficiency and the speed adjustment range

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