Control system and method capable of adjusting fan and threshing cylinder and used for harvester

Abstract

The invention discloses a control system and a method which can adjust a fan and a threshing cylinder and be used for a harvester. The control system which can adjust the fan and the threshing cylinder and is used for the harvester comprises a gearshift, wherein a first transmission pair is arranged between the gearshift and a fan speed regulating mechanism; a second transmission pair is arrangedbetween the gearshift and a threshing cylinder speed regulating mechanism; and when the first transmission pair is in a transmission state and the second transmission pair is in a stopped state, the threshing cylinder speed regulating mechanism regulates rotating speed of the threshing cylinder. The control system disclosed by the invention integrated design and mounting of fan and threshing cylinder speed regulating structures is realized, mounting space occupied by the system in the mounting space of the complete machine is greatly simplified, and space occupancy rate of the complete machineis reduced; a mechanical control mode (transmission pair) is adopted for realizing adjustment of rotating speeds of the fan and the threshing cylinder, so that connection is reliable and safe; and operation is accurate and simple, and short time is consumed.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery, in particular to a control system and method for an adjustable fan and a threshing drum for a harvester. Background technique [0002] During the operation of the combine harvester, due to the different types of harvested grains, production areas and degrees of dryness and humidity, it is necessary to frequently adjust the speed of its cleaning fan and threshing drum. The principle of speed regulation is to change the transmission ratio by changing the transmission radius of the driving wheel and the driven wheel to achieve the purpose of stepless speed regulation. [0003] At present, the adjustment of the driving radius of the cleaning fan of the mainstream combine harvester and the drive wheel of the threshing drum is realized by adjusting the tension of the moving plate. The driving radius of the driven wheel is controlled by the spring and can be automatically adjusted accordi...

AI Technical Summary

Problems solved by technology

The two adjustment methods often need to be set and operated separately, which is time-consuming and labor-intensive, and the operation is inconvenient. What's more, the existing operating devices for adjusting the cleaning fan and the threshing drum are often set outside the cab. Therefore, the adjustment During the process, it is necessary to stop the operation, which brings great inconvenience to the adjustment of the cleaning fan and the threshing drum, and greatly increases the complexity of the operation and the operation time

And the separate two sets of operating structures greatly increase the installation space of the combine harvester and increase the occupied space of the whole machine

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