Automatic monitoring and trouble-shooting device for blocking fault of cylinder-type threshing parts

Abstract

The invention relates to an automatic monitoring and trouble-shooting device for a blocking fault of cylinder-type threshing parts and belongs to the technical field of agricultural machinery. The device comprises a threshing cylinder, a threshing concave board and a control circuit, wherein the threshing concave board consists of a fixing concave board and a moving concave board; one end, which is far away from the fixing concave board, of the moving concave board is connected with a piston rod of a hydraulic cylinder by a pressure sensor, and a cylinder body of the hydraulic cylinder is hinged on a machine frame; a pressure signal output end of the sensor is connected with a hydraulic cylinder oil circuit reversing valve by the CPU-included control circuit; when pressure signal value is smaller than preset lower limit value, the reversing valve is controlled to keep a preset gap between the moving concave board and a threshing cylinder by the hydraulic cylinder; and when the pressure signal value is greater than a preset upper limit value, the reversing valve is controlled to increase the gap between the moving concave board and the threshing cylinder by the hydraulic cylinder. By adoption of the device, not only the blocking fault is effectively avoided, but also blockages can be removed.

Description

technical field [0001] The invention relates to a combine harvester threshing device, in particular to a drum type threshing component clogging fault automatic monitoring and eliminating device, which belongs to the technical field of agricultural machinery. Background technique [0002] When harvesting a full-feed combine harvester, crop stalks often jam in the harvester's intermediate conveyor and threshing unit, causing interruptions in work and even damage to components. It is time-consuming and labor-intensive to eliminate the blocking fault and repair the machine tool, which not only reduces the operating efficiency of the machine tool, but also delays the harvesting time and causes economic losses. Blockage failures are usually caused by excessive cutting feed, tough crop stems and / or high humidity. Blockage first occurs in the threshing device, especially at the outlet of the drum threshing unit. [0003] The invention patent application with the application number...

AI Technical Summary

Problems solved by technology

Although this device can provide sound and image warning information for blocking faults, it cannot effectively prevent the occurrence of blocking faults. Reducing the cutting feed in time will also lag behind the reaction to the material entering the drum threshing unit. In addition, there is also the possibility that the warning signal is not detected or the operating status of the machine cannot be adjusted correctly in time.

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