Ratooning rice harvesting header and harvester including the same

Patent metadata

Field	Value
Publication number	US-12075727-B2
Application number	US-202218559799-A
Country	US
Kind code	B2
Filing date	Feb 23, 2022
Priority date	Nov 10, 2021
Publication date	Sep 3, 2024
Grant date	Sep 3, 2024

Abstract

The present disclosure provides a ratooning rice harvesting header and a harvester including the same. The ratooning rice harvesting header includes a multi-layer adjustable disc cutter, a header, and an ear cutter. The multi-layer adjustable disc cutter is mounted below the header and located below a rear portion of the ear cutter. The ear cutter is mounted at a front end of the header. The multi-layer adjustable disc cutter includes at least one group of multi-layer disc cutting assemblies. Each group of multi-layer disc cutting assemblies includes two multi-layer disc cutting assemblies. Each of the multi-layer disc cutting assemblies includes three layers of vertically arranged blades. The use of the multi-layer adjustable disc cutter in cooperation with the ear cutter can reduce the straw-grain ratio of the part cut from the crops to reduce the power consumption of the harvester.

First claim

What is claimed is:

1. A harvester including a ratooning rice harvesting header, wherein the ratooning rice harvesting header comprises a multi-layer adjustable disc cutter, a header, and an ear cutter, the multi-layer adjustable disc cutter is mounted below the header and located below a rear portion of the ear cutter, and the ear cutter is mounted at a front end of the header; the multi-layer adjustable disc cutter comprises at least one group of multi-layer disc cutting assemblies, each group of the multi-layer disc cutting assemblies comprises two of the multi-layer disc cutting assemblies, each of the multi-layer disc cutting assemblies comprises three layers of vertically arranged blades, and blade rotation directions of the two of the multi-layer disc cutting assemblies are opposite to each other;
the multi-layer adjustable disc cutter comprises the multi-layer disc cutting assemblies, a mounting plate, a transmission mechanism, an adjusting plate, and fixed blades; the multi-layer disc cutting assemblies are mounted on the mounting plate, and a plurality of the fixed blades are arranged in a length direction of the mounting plate;
two ends of the mounting plate are connected to the adjusting plate, and an upper end of the adjusting plate is hingedly connected to the header;
the upper end of each of the adjusting plates is provided with a mounting groove arranged longitudinally, and the mounting groove is configured to hingedly connect to the header;
the multi-layer disc cutting assemblies are connected to the transmission mechanism;
each of the multi-layer disc cutting assemblies comprises blade mounting flanges, a blade shaft, and the three layers of blades; and at least three of the blade mounting flanges are arranged at one end of the blade shaft sequentially from top to bottom, a spacer sleeve is mounted between every two of the blade mounting flanges, the blades are mounted on the blade mounting flanges sequentially from top to bottom, and diameters of the blades sequentially decrease from top to bottom;
each of the multi-layer disc cutting assemblies comprises the three layers of blades, comprising a large blade, a middle-sized blade, and a small blade;
the large blade, the middle-sized blade, and the small blade are all semi-circular saw blades; the large blade, the middle-sized blade, and the small blade are mounted on the blade mounting flanges of the blade shaft sequentially from top to bottom;
and a diameter of the large blade is larger than a diameter of the middle-sized blade, and the diameter of the middle-sized blade is larger than a diameter of the small blade;
the blades of each group of the multi-layer disc cutting assemblies of the multi-layer adjustable disc cutter partially overlap the blades of an adjacent group of the multi-layer disc cutting assemblies in a space; and
the multi-layer adjustable disc cutter further comprises: a disc cutter height adjusting device, configured to adjust a relative distance between the multi-layer adjustable disc cutter and the header, wherein one end of the disc cutter height adjusting device is connected to the adjusting plate, and an other end of the disc cutter height adjusting device is connected to the header.

2. The harvester according to claim 1 , wherein each of the blade mounting flanges comprises a blade fixing disc and a blade fixing disc spoke;
and the blade fixing disc spoke is mounted on the blade fixing disc.

3. The harvester according to claim 1 , further comprising: a disc cutter angle adjusting device, wherein one end of the disc cutter angle adjusting device is connected to the mounting plate, and an other end of the disc cutter angle adjusting device is configured to connect to a chassis of a harvester.

4. The harvester according to claim 1 , wherein the multi-layer adjustable disc cutter further comprises a plurality of crop separation plates; and the crop separation plates are uniformly distributed in the length direction of the mounting plate, and a group of the multi-layer disc cutting assemblies having opposite rotation directions are mounted between every two adjacent ones of the crop separation plates.

Assignees

• Univ Jiangsu

Inventors

• Li Yaoming
• Wang Hanhao
• Huang Mingsen

Classifications

• A01D47/00 Primary

  Headers {for topping of plants, e.g. stalks with ears} · CPC title

• A01D41/14 Primary

  Mowing tables · CPC title

• A01D41/06

  Combines with headers · CPC title

• A01D34/73

  Cutting apparatus · CPC title

• A01D45/04 Primary

  of rice · CPC title