Threshing drum and speed adjustment method when using the threshing drum for threshing

Abstract

The invention discloses a threshing cylinder and a method for adjusting the rotating speed when the threshing cylinder is used for threshing. The threshing cylinder includes a rotating shaft and a plurality of gear rods installed on the rotating shaft, each gear rod is provided with several threshing teeth, at least one tooth More than one force-measuring tooth is installed on the rod, and the threshing drum also includes a force-measuring device for detecting the material resistance of the force-measuring tooth, which can detect and obtain material resistance data reflecting the size of the feed, with high detection accuracy and easy operation Improvement, low cost of improvement. The speed adjustment method includes detecting and obtaining the material resistance of the force-measuring teeth when the threshing drum rotates in the threshing device, obtaining the current feeding amount inside the threshing device, and adjusting the speed of the threshing drum to match the current feeding amount , which can accurately obtain the feeding amount inside the threshing device, realize precise adjustment of the rotational speed of the threshing drum, thereby reducing the broken rate and non-cleaning rate, and improve the working performance and threshing effect of the threshing device.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery, in particular to a threshing drum and a method for adjusting the rotational speed when the threshing drum is used for threshing. Background technique [0002] As one of the core links of crop harvesting, threshing work quality directly affects the overall quality of harvest. At present, foreign countries are vigorously developing adaptive feed rate technology in the threshing process, and have made breakthroughs. However, due to foreign technology blockades, domestic self-adaptive research started late and its application is relatively low. [0003] At present, the main ways of detecting the feeding amount in China are: (1) estimating the feeding amount by detecting the grain flow rate; (2) predicting the feeding amount by detecting the power consumption of the main threshing components; (3) combining (1) and The method of (2) is fused to predict the feeding amount; (4) The feedin...

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Problems solved by technology

However, the above detection method is to measure the feeding amount by detecting the relevant parameters of the device before the threshing device, and the value of the feeding amount is indirectly calculated by detecting the relevant parameters of other working parts. Due to the shape of the grain and the order of laying The state of the parameters in the threshing device is different from the state before the threshing device, so there is a large error between the detected crop feeding amount and the actual grain feeding amount in the threshing device. The feeding amount obtained by the system based on these detection methods Adjust the working parameters of the threshing device, and the adjusted working parameters of the threshing device have a large error with the actual working parameters that should be selected, resulting in a large broken rate and unremoved rate, which reduces the working performance and threshing effect

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