Claims:1. A disc blade assembly (100) for a tillage implement, said tillage implement having a frame, at least one rotary shaft (102) and a plurality of discs (104) arranged in laterally spaced relationship on said rotary shaft (102), and said rotary shaft (102) mounted within said frame, said disc blade assembly (100) comprising:
a plurality of blades (106) coupled to each of said disc (104),
wherein,
each of said blade (106) coupled to each of said disc (104) is positioned offset with respect to corresponding each of said blade (106) coupled to its adjacent disc (104).
2. The disc blade assembly (100) as claimed in claim 1, wherein each of said blade (106) coupled to each of said disc (104) is disposed at a predetermined distance X from a reference line (L1) defined by its preceding adjacent blade (106) coupled to its preceding adjacent disc (104).
3. The disc blade assembly (100) as claimed in claim 2, wherein said predetermined distance X ranges from 30 mm to 120 mm.
4. The disc blade assembly (100) as claimed in claim 1, wherein said plurality of blades (106) are coupled to each of said discs (104) by a connecting means (108), said connecting means (108) is at least one of welding, bolt and nut and riveting.
5. A method (200) of providing a disc blade assembly (100) for a tillage implement, said tillage implement having a frame, at least one rotary shaft (102) and a plurality of discs (104) arranged in laterally spaced relationship on said rotary shaft (102), and said rotary shaft (102) mounted within said frame, said method (200) comprising:
coupling a plurality of blades (106) to each of said disc (104),
wherein,
each of said blade (106) coupled to each of said disc (104) is positioned offset with respect to corresponding each of said blade (106) coupled to its adjacent disc (104).
6. The method (200) as claimed in claim 5, wherein said each blade (106) coupled to each of said disc (104) is disposed at a predetermined distance X from a reference line (L1) defined by its preceding adjacent blade (106) coupled to its preceding adjacent disc (104).
7. The method (200) as claimed in claim 6, wherein said predetermined distance X ranges from 30 mm to 120 mm.
8. The method (200) as claimed in claim 5, wherein said plurality of blades (106) are coupled to each of said discs (104) by a connecting means (108), said connecting means (108) is at least one of welding, bolt and nut, and riveting.
, Description:TECHNICAL FIELD
[001] The embodiments herein generally relate to tillage implements. More particularly, to a disc blade assembly for tillage implements.

BACKGROUND
[002] Tillage is one of the most important operations in agriculture. It is done mainly to loosen an upper layer of soil, to mix the soil with fertilizers and to remove weeds. Farmers utilize a wide variety of agricultural tillage implements to prepare the soil for planting. Usually, agricultural tillage implement such as a rotavator is mounted on the tractor (agricultural vehicle) for performing the tilling operation. Some of the rotavators may include two or more sections coupled together to perform multiple functions as they are pulled through fields by the agricultural vehicle. A conventional agricultural implement includes a driven shaft, on which are mounted a plurality of ground engaging blades. The blades erupt the soil from below a seed depth to upwards or ground surface so as to open up the soil and pulverize the soil to a desired condition. The rotavator is mounted on the three-point linkage system of the agricultural vehicle and power to the rotavator is transmitted through Power Take-Off (PTO) of the agricultural vehicle.
[003] Blades of the rotary tillage members get damaged when they encounter hard objects (for example, stones, rocks, roots, and so on) which are usually present abundantly in fields. The blades when pressed against hard objects would either result in bending or breaking or disengaging of blades from the rotating shaft or suffer other serious damage which is undesirable. Further, the blades are subjected to high amplitude vibration as they are mounted in a same phase. For example, the rotavator may be operated at 3 hz frequency and two or more blades of the rotavator may touch the ground simultaneously, i.e. a blade on first disc and a blade on second disc which are mounted on the disc at the same phase touch the ground three times simultaneously in one rotation of the driven shaft. For example, the rotation frequency may be considered to be 3 Hz. A predominant frequency may arise which is 3*3 = 9 Hz when the rotation frequency is 3 Hz. A high amplitude vibration may be observed at >9 Hz frequency which affects the performance of the rotavator and reduces the life of the rotavator blades.
[004] Therefore, there exists a need for a disc blade assembly for tillage implements, which eliminates the aforementioned drawbacks.

OBJECTS

[005] The principal object of the embodiments disclosed herein is to provide a disc blade assembly for tillage implements.
[006] Another object of the embodiments disclosed herein is to provide a disc blade assembly for tillage implement in which the blades on the disc are disposed in an offset manner with respect to corresponding each of the blade coupled to its adjacent disc to reduce high amplitude vibration.
[007] Yet another object of the embodiments disclosed herein is to provide a disc blade assembly for tillage implement to surpass obstacles during a soil operation and prevent blade breakage or blade damage.
[008] Still another object of the embodiments disclosed herein is to provide a disc blade assembly for tillage implement which is inexpensive and easy to manufacture.
[009] Also, another object of the embodiments disclosed herein is to provide a method of providing a disc blade assembly for a tillage implement.
[0010] These and other objects of the embodiments herein will be better appreciated and understood when considered in conjunction with the following description and the accompanying drawings. It should be understood, however, that the following descriptions, while indicating embodiments and numerous specific details thereof, are given by way of illustration and not of limitation. Many changes and modifications may be made within the scope of the embodiments herein without departing from the spirit thereof, and the embodiments herein include all such modifications.

BRIEF DESCRIPTION OF DRAWINGS
[0011] The embodiments herein are illustrated in the accompanying drawings, throughout which like reference letters indicate corresponding parts in the various figures. The embodiments herein will be better understood from the following description with reference to the drawings, in which:
[0012] FIG. 1 depicts a perspective view of a disc blade assembly for tillage implement, according to an embodiment as disclosed herein;
[0013] FIG. 2 depicts a line diagram of the disc blade assembly for tillage implement, according to an embodiment as disclosed in FIG. 1; and
[0014] FIG. 3 depicts a flow chart indicating a method of providing the disc blade assembly for the tillage implement, according to an embodiment as disclosed herein.

DETAILED DESCRIPTION
[0015] The embodiments herein and the various features and advantageous details thereof are explained more fully with reference to the non-limiting embodiments that are illustrated in the accompanying drawings and detailed in the following description. Descriptions of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiments herein. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein may be practiced and to further enable those of skill in the art to practice the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the embodiments herein.
[0016] The embodiments herein disclose a disc blade assembly for tillage implements. Further, the embodiments herein disclose the disc blade assembly for tillage implement in which the blades on the disc are disposed in an offset manner with respect to corresponding each of the blade coupled to its adjacent disc to reduce high amplitude vibration. Furthermore, the embodiments herein disclose the disc blade assembly for tillage implement to surpass obstacles during a soil operation and prevent blade breakage or blade damage. Additionally, the embodiments herein disclose the disc blade assembly for tillage implements which is inexpensive and easy to manufacture. Also, the embodiments herein disclose a method of providing a disc blade assembly for a tillage implement. Referring now to the drawings and more particularly to FIGS. 1 through FIG. 3, where similar reference characters denote corresponding features consistently throughout the figures, there are shown embodiments.
[0017] For the purpose of this description and ease of understanding, the tillage implement is explained herein below with reference to provide a disc blade assembly (100) to an agricultural implement such as a rotavator used in an agricultural vehicle such as tractor. However, it is also within the scope of the invention to assemble the disc blade assembly (100) in any other tillage implement without otherwise deterring the intended function of the tilling the soil as can be deduced from the description and corresponding drawings.
[0018] FIG. 1 depicts a perspective view of a disc blade assembly (100) for tillage implement, according to an embodiment as disclosed herein. In an embodiment, the disc blade assembly (100) for a tillage implement includes a frame (not shown), at least one rotary shaft (102), a plurality of discs (104), plurality of blades (106) and at least one connecting means (108).
[0019] In an embodiment, the tillage implement (not shown) is pulled by the tractor. The tractor has a power take-off shaft (not shown) extending rearward from its body and a drawbar structure mounted on the underside of the body, where the drawbar structure extends rearward from the tractor to terminate at its rearward end in a clevis type connection (not shown). These and all other features of the tractor are conventional and consequently details are neither shown nor described relative to those features.
[0020] The tillage implement includes the frame (not shown). The frame is composed of a front transverse beam (not shown) extending across the front end of the agricultural implement. In an embodiment, the frame is configured to be connected to the clevis by means of a pin (not shown). In an embodiment, the frame may be adjusted vertically and relative to the ground. The tillage implement includes the drive shaft (not shown). In an embodiment, the drive shaft (not shown) is rotated by the driving means (not shown). The driving means is rotated by a power take-off unit (PTO) of the tractor. The power take-off unit produces a torque T.
[0021] The tillage implement includes at least one rotary shaft (102). The rotary shaft (102) is disposed in the frame. The rotary shaft (102) is driven by the drive shaft (not shown) through a drive shaft gear wheel (not shown). In another embodiment, the tillage implement may include a plurality of rotary shafts (102). The plurality of discs (104) is arranged in laterally spaced relationship on the rotary shaft (102). In an embodiment, the plurality of discs (104) are rotated in a forward direction. However, it is also within the scope of the invention to provide any rotation direction for the plurality of discs (104) without otherwise deterring the intended function of the rotation as can be deduced from this description and corresponding drawings.
[0022] In an embodiment, the each disc (104) includes a plurality of apertures (not shown). The plurality of apertures (not shown) are defined at predetermined locations of each disc (104). Each aperture of each disc (104) is adapted to receive the connecting means (108) there through to secure the blade (106) to the disc (104).
[0023] In an embodiment, each disc (104) is adapted to receive the plurality of blades (106), where the plurality of blades (106) includes at least one first blade (106a) and at least one second blade (106b). In an embodiment, each disc (104) may be adapted to receive a plurality of first blades (106a) and a plurality of second blades (106b). In an embodiment, the blades (106a) and (106b) are fabricated in a shape selected from a group comprising L shape, C shape and J shape. However, it is also within the scope of the invention to provide the blade in any other shape without otherwise deterring the intended function of the blades (106) as can be deduced from this description and corresponding drawings. In an embodiment, the first blades (106a) includes a blade body (not shown) which is bent towards left side (as shown in FIG. 2) of the disc (104) with respect to a rotational axis (not shown) of the rotary shaft (102). Further, the second blades (106b) includes a blade body (not shown) which is bent towards right side of the disc (104) (as shown in FIG. 2) with respect to the rotational axis A (not shown) of the rotary shaft (102).
[0024] The blades (106) of the tillage implement is disposed in such a way that each of the blade (106) coupled to each disc (104) is disposed in an offset manner with respect to corresponding each blade (106) coupled to its adjacent disc (104). Each blade (106) coupled to each disc (104) is disposed at a predetermined distance X (as shown in fig. 1) from a reference line (L1), as shown in fig. 1) defined by its preceding adjacent blade (106) coupled to its preceding adjacent disc (104). The predetermined distance X ranges from 30 mm to 120 mm. However, it is also within the scope of the invention to provide the predetermined distance X in any other value without otherwise deterring the intended function of the blade assembly (100) as can be deduced from the description and corresponding drawings.
[0025] For example, the tillage implement may include the plurality of discs 1, 2, 3, 4, 5 and 6 and each disc may include 6 blades namely A, B, C, D, E and F. According to the embodiments herein, the blade A on the disc 1 is not phase with the blade A on the disc 2. Similarly, in continuous the other blades A mounted on other discs 3, 4, 5 and 6 also are not arranged in phase with the blade A of other discs. Also, similarly the blades B mounted on disc 1 to 6 are not in arranged in phase. When an imaginary reference line from a top right edge of the blade A of disc 1 towards the blade A of disc 2 is considered, it can be seen that the top right edge of the blade A of disc 2 is arranged at a ‘X’ distance away from the imaginary reference line. Similarly, in continuous the other blades A mounted on other discs 3, 4, 5 and 6 also are also arranged at ‘X’ distance away from the imaginary reference line drawn along its preceding adjacent disc. Thus each of the blade coupled to each of the disc is positioned offset with respect to corresponding each of the blade coupled to its preceding adjacent disc.
[0026] FIG. 2 depicts a line diagram of the disc blade assembly (100) for tillage implement, according to an embodiment as disclosed in FIG. 1. The tillage implement includes the connecting means (108). In an embodiment, the connecting means (108) is a bolt and nut assembly. However, it is also within the scope of the invention to provide any type of connecting means without otherwise deterring the intended function of connecting means as can be deduced from this description and corresponding drawings. In an embodiment, the connecting means (108) is at least one of welding, bolt and nut, riveting and other similar means.
[0027] FIG. 3 depicts a flow chart of a method (200) of providing a disc blade assembly (100) for a tillage implement, according to an embodiment as disclosed herein. A method 200 of providing the disc blade assembly (100) for a tillage implement is discussed herein. The method 200 includes coupling a plurality of blades (106) to each disc (104) wherein each blade (106) coupled to each disc (104) is positioned offset with respect to corresponding each blade (106) coupled to its preceding adjacent disc (104).
[0028] The method 200 is explained herein. The plurality of blades (106) are coupled to each disc (104). The blades (106) of the tillage implement is disposed in such a way that each of the blade (106) coupled to each disc (104) is positioned in an offset manner with respect to corresponding each blade (106) coupled to its preceding adjacent disc (104). Each blade (106) coupled to each disc (104) is disposed at a predetermined distance X from a reference line defined by its preceding adjacent blade (106) coupled to its preceding adjacent disc (104). The predetermined distance X ranges from 30 mm to 120 mm.
[0029] The technical advantages disclosed by the embodiments herein are, the tillage implement mixes and pulverizes the tilled soil well resulting in a good clod size distribution. Further, the arrangement of the blades may be easily adapted in the existing tilling implements. Furthermore, clogging of the rotary shafts of the rotavator during the soil operation is eliminated. Also, damage of the rotating shafts and blades due to impact of stones and roots in soil are evaded. Additionally, it reduces a high amplitude vibration.
[0030] The foregoing description of the specific embodiments will so fully reveal the general nature of the embodiments herein that others can, by applying current knowledge, readily modify and/or adapt for various applications such specific embodiments without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments herein have been described in terms of preferred embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with modification within the spirit and scope of the embodiments as described herein.