WO2021019547A1

WO2021019547A1 - An auger assembly for a harvester

Info

Publication number: WO2021019547A1
Application number: PCT/IN2019/050775
Authority: WO
Inventors: Dharam Singh; Jagatjit Singh; Harmeet Singh
Original assignee: Dharam Singh
Priority date: 2019-07-26
Filing date: 2019-10-21
Publication date: 2021-02-04

Abstract

An auger assembly (120) of a farm machine (100) is disclosed. The disclosed auger assembly (120) includes a plurality of guide bracket attachment (126) spread across the auger assembly (120) surface. The guide bracket attachment (126) has a first curve surface (128) and a second curve surface (130) such that the first and second curved surface defines a substantially "S" shaped body.

Description

FIELD OF INVENTION

The present invention relates generally to cutter bar assembly for agricultural harvesting machines and more specifically, to an auger attachment for the cutter bar assembly of a straw reaper.

BACKGROUND OF THE INVENTION

A cutter bar assembly of an agricultural harvesting machines includes an auger and reel assembly. The auger has a pick-up attachment that usually extends the full width and is provided with oppositely wound auger flights for collecting the harvested crop plant from reel and consolidating the crop material in the central region of the auger from where the crop is conveyed towards a processing means such as trashing unit. The augur may have plurality of retractable cups like attachment spread across the auger surface for assisting the transfer of crop material from the pick-up device to the crop processing machine or to storage.

Figure 1 illustrates a perspective view of a prior art cutter bar assembly (10). The cutter bar assembly (10) has an auger assembly (12) and a reel assembly (14). The auger assembly (12) has a pick-up attachment (16) and a plurality of retractable cups like attachment (18) evenly spread across the auger (12) surface. Figure 2 illustrates an isometric view of a prior art retractable cups like attachment (18). As illustrated, the retractable cups like attachment (18) has a base plate (20), a cup shaped plate (22) resiliently hinged to the base plate (20) through a resilient member (24) such as a torsion spring. Due to multiple parts, the retractable cups like attachment (18) are prone to damage. Multiple parts in known retractable cups like attachment (18) design results in increase in weight and complexity. During operation, the breakage in the known retractable cups like attachment (18) may lead to serious damages to the machine and may increase the down time of a machine. Hence there is a requirement for an improved an auger attachment for the cutter bar assembly of a crop harvester.

SUMMARY OF THE INVENTION According to an embodiment of the invention, an auger assembly of a harvester is disclosed. The disclosed auger assembly includes a plurality of guide bracket attachment spread across the auger assembly surface. The guide bracket attachment has a first curve surface and a second curve surface such that the first and second curved surface defines a substantially“S” shaped body. BRIEF DESCRIPTION OF THE DRAWINGS

Other objects, features, and advantages of the invention will be apparent from the following description when read with reference to the accompanying drawings:

Figure 1 illustrates a perspective view of a prior art cutter bar assembly;

Figure 2 illustrates an isometric view of a prior art retractable cups like attachment; Figure 3 illustrates an isometric view of an exemplary straw reaper/chopper farm machine according to an embodiment of the invention;

Figure 4 illustrates an isometric view of an exemplary cutter bar assembly according to an embodiment of the invention;

Figure 5 illustrates an isometric view of an auger assembly according to an embodiment of the invention;

Figure 6 illustrates an isometric view of an exemplary bracket attachment for the auger assembly according to an embodiment of the invention; and

Figure 7 illustrates a side view of the exemplary bracket attachment for the auger assembly according to an embodiment of the invention;

Figure 7A and 7B illustrates side view of the exemplary bracket attachment for the auger assembly according to alternative embodiments of the invention; and Figure 8 illustrates a top view of the exemplary bracket attachment for the auger assembly according to an embodiment of the invention; and

Figure 8A, 8B and 8C illustrates top view of the exemplary bracket attachment for the auger assembly according to alternative embodiments of the invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The present invention will now be described in detail with reference to the accompanying drawing.

Figure 3 illustrates an isometric view of an exemplary farm machine (100) according to an embodiment of the invention. According to embodiments of the invention, farm machine may belong to a group of harvesting equipment such as, but not limited to, a thresher, straw reaper, paddy straw chopper, etc. As illustrated, the farm machine (100) has a chassis (102), a back shield (104), a hook (106), a blower (108), a plurality of tires (110), a belt cover (112), a cam pulley (114), a havel (116), a cutter bar assembly (118) and a hitch.

Figure 4 illustrates an isometric view of the exemplary cutter bar assembly (118) according to an embodiment of the invention. The cutter bar assembly (118) has an auger assembly (120) and a reel assembly (122). According to an embodiment, the reel assembly (122) may be a conventional pick-up device with rotatable tines (124) for lifting the crop from the ground. Figure 5 further illustrates an isometric view of the auger assembly (120) according to an embodiment of the invention. As illustrated, the auger assembly (120) may have plurality of guide bracket attachment (126) spread across the auger assembly (120) surface. Figure 6 illustrates an isometric view of the exemplary guide bracket attachment (126) for the auger assembly (120) according to an embodiment of the invention. Figure 7 illustrates a side view of the exemplary bracket attachment (126) for the auger assembly according to an embodiment of the invention. The guide bracket attachment (126) may have a first curve surface (134) and a second curve surface (130) such that the first and second curved surface defines a substantially “S” shaped body. Figure 7A and 7B illustrates side view of the exemplary bracket attachment (126) for the auger assembly (120) according to alternative embodiments of the invention. As illustrated, Figure 7A and 7B illustrates some exemplary curved surface shapes. The guide bracket attachment (126) may be made up of a sheet metal. According to an embodiment, a first curve surface (134) may have arrangement for securely confining to the auger assembly (120) surface.

Figure 8 illustrates a top view of the exemplary bracket attachment (126) for the auger assembly (120) according to an embodiment of the invention. As illustrated, the arrangement for securely confining may include at least a first hole (132) and a second hole (128). According to yet another embodiment, the first hole (132) may be a circular hole and the second hole (128) may be a substantially oval notch. The arrangement being such that the guide bracket attachment (126) may be fasten to the auger assembly (120) surface by using screw or nut and bolt through the first hole (132) and the second hole (128). According to an embodiment, the first hole (132) and the second hole (128) may be of any shape and size and not restricted to circular and oval profile respectively. Figure 8A, 8B and 8C illustrates top view of the exemplary bracket attachment (126) for the auger assembly (120) according to alternative embodiments of the invention. As illustrated, figure 8A, 8B and 8C illustrate different alternative exemplary shapes for the first hole (132) and the second hole (128). According to yet another embodiment, the guide bracket (126) may be mounted or secured on the auger assembly (120) by any fastening arrangement.

According to an embodiment, the second curve surface (130) defines a substantially retractable surface projecting outwardly from the auger assembly (120) surface. According to yet another embodiment, the second curve surface (130) may have notches (136) on both side of the edge as shown in figure.

The disclosed guide bracket attachment (126) may be used with auger assembly of the Straw Reaper, straw chopper, thresher or any type of Harvester. The disclosed guide bracket attachment (126) may be used to:

l)collect harvested crop plant from reel and feed the same to the guide drum; and

(2) to cut/chop straw in small pieces and to collect the left-out grains during harvesting. According to embodiments of the invention, the disclosed guide bracket attachment (126) reduces cost and enhances productivity. The disclosed guide bracket attachment (126) being a single piece, enables easy assembly & serviceability and comparatively less failures. As will be readily apparent to those skilled in the art, the present invention may easily be produced in other specific forms without departing from its essential characteristics. The present embodiments is, therefore, to be considered as merely illustrative and not restrictive, the scope of the invention being indicated by the claims rather than the foregoing description, and all changes which come within therefore intended to be embraced therein.

Claims

aim:

1. An auger assembly (120) of a farm machine, the auger assembly (120) comprising:

a plurality of guide bracket attachment (126) spread across the auger assembly (120) surface wherein the guide bracket attachment (126) has a first curve surface (134) and a second curve surface (130) such that the first and second curved surface defines a substantially“S” shaped body.

2. The auger assembly (120) as claimed in claim 1, wherein the guide bracket attachment (126) is made up of a sheet metal.

3. The auger assembly (120) as claimed in claim 1, wherein the first curve surface (134) has an arrangement for securely confining to the auger assembly (120) surface.

4. The auger assembly (120) as claimed in claim 3, wherein the arrangement for securely confining comprises at least a first hole (132) and a second hole (128).

5. The auger assembly (120) as claimed in claim 4, wherein the first hole (132) is a circular hole and the second hole (128) is a substantially oval notch.

6. The auger assembly (120) as claimed in claim 1, wherein the guide bracket attachment (126) is fasten to the auger assembly (120) surface by using screws or nut and bolts through the first hole (132) and the second hole (128).

7. The auger assembly (120) as claimed in claim 1, wherein the second curve surface (130) defines a substantially retractable surface projecting outwardly from the auger assembly (120) surface.

8. The auger assembly (120) as claimed in claim 1, wherein the second curve surface (130) has a notch (136) on both side of an edge.

9. The auger assembly (120) as claimed in claim 1, wherein the farm machine is a straw reaper or a paddy straw chopper or any kind of harvester.

10. The auger assembly (120) as claimed in claim 1 wherein the guide bracket (126) is mounted or secured on the auger assembly (120) by any fastening arrangement.

11. The auger assembly (120) as claimed in claim 1 wherein the first hole (132) and a second hole (128) are of any shape and size.