Profiled coupling for harvester header

Abstract

The invention discloses a profiled coupling for a harvester header. The profiled coupling is a mechanical device and is composed of a main machine coupling plate, a pressure reducing spring, a liftingoil cylinder and a header coupling plate. The header coupling plate is mounted behind the header, the upper end of the header coupling plate is provided with a pin shaft, and the two ends of the lower portion of the header coupling plate are provided with vertical sliding plates; the main machine coupling plate is mounted in front of a main machine, the upper end of the main machine coupling plate is provided with a long hole for the pin shaft to be inserted in, the two ends of the lower portion of the main machine coupling plate are provided with sliding blocks, and a support base is arranged in the middle of the main machine coupling plate; the header is in floating connection with the long hole of the main machine coupling plate through the pin shaft of the header coupling plate, and the sliding blocks on the main machine coupling plate are supported on the sliding plates of the header coupling plate; the pressure reducing spring is a cylindrical spiral compression spring, sleevesthe lifting oil cylinder and jacks the pin shaft of the header coupling plate and the support base of the main machine coupling plate. The lifting oil cylinder lifts the header during transferring orturning at the field end, profiled plates of a base plate of the header are grounded one by one during operation, the weight of the header is shared by the decompression spring, and profiled harvesting is conducted along the field.

Description

technical field [0001] The profiling coupler disclosed by the invention is a mechanical device, and in particular relates to a profiling coupling device for a vertical header of a harvester. Background technique [0002] When crops are harvested, it is required that the cutter should be able to ensure that the profiling with the ground shape can be fitted, so that the position of the harvest stubble is lower and the crop loss is reduced. In particular, crops such as ramie and pasture, which are planted once and harvested for many years, require low stubble cutting to obtain more biological yield, and are conducive to the growth of stubble in the next season. However, the flatness of the land is difficult to meet the requirements, so profiling harvesting is particularly important, and mechanical harvesting is difficult to achieve. [0003] The header of the combine harvester uses mechanical profiling or manual methods to control the hydraulic valve to manipulate the hydrauli...

AI Technical Summary

Problems solved by technology

Although the former has a relatively simple structure (in fact, it is not simple), it needs to be realized by skilled drivers, which increases the labor intensity and difficulty of operation. The latter has a more complicated structure and is expensive and difficult to popularize.

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