Harvester ear head feeding depth detection system
The technology of ear head and feeding inlet is applied in the field of ear head feeding depth detection system of semi-feeding combine harvester, which can solve the problems of sensor failure, increase of grain loss rate, misoperation of feeding depth adjustment device, etc. Reasonable, reduce labor intensity, avoid failure and the effect of misoperation
Inactive Publication Date: 2015-09-30
NANTONG UNIVERSITY
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Problems solved by technology
However, the rod-shaped sensor is easily entangled by straw and weeds, causing the sensor to malfunction and causing misoperation of the feeding depth adjustment device, so it is easy to increase the grain loss rate, so this solution has limitations
However, other series of half-feed combine harvesters at home and abroad do not have an automatic detection and adjustment device for the depth of ear head feeding.
Method used
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[0015] Use the embedded control system to adjust the position of the stem clamping chain every fixed period to adjust the feeding depth of the ear head. The setting of the specific adjustment signal is judged by the control system according to the detection signal of a row of transmission infrared photoelectric sensors installed at a fixed distance before the feeding port of the semi-feeding combine harvester. This row of photoelectric sensors is divided into transmitters and receivers. Each transmitter and the corresponding receiver form a group. Each group of light point switches is arranged along the stem direction of the harvested crops at a fixed distance, and each is assigned in the control system. The group number, and the position of each group of light point switches relative to the threshing drum is also known. When the stalk layer of harvested crops comes from the header, it first passes between the transmitting end and the receiving end of these photoelectric senso...
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The invention discloses a fringe feeding depth measurement system of a harvester. A transmission-type infrared photoelectric sensor is arranged in a fixed distant position before a feeding inlet of a semi-feeding combine-harvester. The transmission-type infrared photoelectric sensor is connected with an embedded control system. The photoelectric sensor comprises transmitting terminals and receiving ends. Each transmitting terminal and each correspondent receiving end form a group. Each group of light-spot is arranged at intervals in the direction of reaped crop stems and numbered in the control system. The position of a stem camping chain is adjusted at intervals through the embedded control system, so that the fringe feeding depth is adjusted. Specific amount of adjusting signals is judged by the control system according to the infrared photoelectric sensor. The fringe feeding depth measurement system of the harvester is reasonable in structure, full-automatic non-contact type measurement is adopted, and measuring accuracy meets threshing requirements of the harvester.
Description
[0001] This application is a divisional application with application number: 201210037866.0, application date: 2012.02.20, and name: "Semi-feeding Combine Harvester Head Feeding Depth Detection System". technical field [0002] The invention relates to a system for detecting the ear head feeding depth of a half-feed combine harvester. Background technique [0003] The half-feed combine harvester is a kind of harvesting machine suitable for small plot harvesting operations, which adopts a different threshing method from the large full-feed combine harvester. When threshing, the ears of the crops enter the threshing drum for threshing, while the stems are still outside the threshing drum. Therefore, it consumes less power during threshing and has high threshing efficiency. However, this threshing method of the half-feed combine requires that when the ear head of the crops enters the threshing drum for threshing, the ear head should be exactly at the tangent point between the ...
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IPC IPC(8): A01D41/127
Inventor 陆伟家孙泉如季彬彬杨玉萍张森张福豹
Owner NANTONG UNIVERSITY