High-speed plow body curved surface parameterization design method based on horizontal straight element line method

Abstract

The invention relates to a high-speed plow body curved surface parameterization design method based on a horizontal straight element line method, which comprises the following steps: S1, determining plane profile diagram parameters of a high-speed plow body curved surface according to the tilling depth a and the tilling width b of a high-speed plow; s2, determining a lead curve parameter of the curved surface of the high-speed plough body; s3, determining straight element line parameters corresponding to the derived curve; and S4, performing three-dimensional drawing on the curved surface of the high-speed plough body. The design steps and the design parameters of the curved surface of the high-speed plough body are standardized; the design of a guide curve is simplified; the calculation of a horizontal straight element line is simplified; and the design time is shortened by drawing the curved surface of the high-speed plow in combination with three-dimensional design software. The design efficiency is improved, and a high-speed plow body curved surface parameterization design method is provided.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery, and in particular relates to a parametric design method of a high-speed plow body curved surface based on a horizontal line method. Background technique [0002] Plowing is the most time-consuming part of modern agriculture, accounting for about 70 percent of the total time spent in the field. The high-speed conventional plow is one of the important agricultural machinery for efficient farming. However, a large number of experimental studies have shown that when ordinary conventional plows are plowed at high speeds, the traction resistance will become larger, and the soil will be thrown farther to one side, making the furrow wider. The high-speed plow is based on the common plow structure, and some structural parameters are changed so that the plow body can be used as an agricultural machine for plowing operations with a plowing speed above 7km / h. In order to optimize the structu...

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Problems solved by technology

"Three-dimensional modeling and surface analysis of the plow body surface", Cheng Shuncai et al., "Hunan Agricultural Machinery", 2009, 36(09):17-19, studied the design method of the plow body surface, although the research described the plow body in detail The formation process of the curved surface, but the formation process of the guide curve in this paper is relatively cumbersome, which reduces the design efficiency of the plow body

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