High position unloading and automatic return device of combine harvester

Abstract

The invention provides a high position unloading and automatic return device of a combine harvester. The high position unloading and automatic return device comprises a grain tank. An unloading mechanism, a drive mechanism and a control mechanism are arranged on the grain tank. The unloading mechanism comprises a vertical grain cylinder, a lower rotation base, an upper rotation base, a transverse grain cylinder and an unloading opening. A first conveying auger is arranged in the vertical grain cylinder. A second conveying auger is arranged in the transverse grain cylinder. The lower rotation base is connected with the upper end of the vertical grain cylinder in a rotatable mode. The lower rotation base can rotate in the horizontal direction. The upper rotation base is connected with the lower rotation base in a rotating mode. The upper rotation base can rotate in the vertical direction. A transverse conveying auger is arranged in the upper rotation base and the lower rotation base. The transverse grain cylinder is fixedly connected with the upper rotation base. The unloading opening is formed in the outer end of the transverse grain cylinder. The drive mechanism comprises a miniature motor, a hydraulic oil cylinder and a stroke limiting point. The control mechanism controls the miniature motor and the hydraulic oil cylinder and adjusts the position of the unloading opening. The high position unloading and automatic return device is simple in structure, easy to implement and high in reliability.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery and relates to a high-position grain unloading and automatic return device for a combine harvester. Background technique [0002] my country is a big agricultural country, and the market demand for grain combine harvesters is very large. Combine harvesters usually have a grain collection and unloading device for collecting and harvesting crops for storage, transportation, and dumping. The grain collection and unloading device is divided into two types: manual unloading and mechanical unloading. At present, one of the necessary conditions for the efficient operation of large and medium-sized grain combine harvesters is to automatically complete the grain unloading operation while the harvester is harvesting, thereby improving the working efficiency of the harvester. [0003] However, most of the existing large and medium-sized grain combine harvesters in China use manual unloading ...

AI Technical Summary

Problems solved by technology

Due to the low precision of the grain unloading mechanism, and the delay and hysteresis of human operation, when the manual operation of the grain unloading cylinder returns, it often cannot be in place at one time.

This manual return method of the grain unloading device cannot meet the production needs, and has the disadvantages of many return actions, low precision, and manual adjustment and coordination.

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