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KR-20260063478-A - Lightweight disc harrow for tractors

KR20260063478AKR 20260063478 AKR20260063478 AKR 20260063478AKR-20260063478-A

Abstract

The present invention relates to a lightweight disc harrow for a tractor. According to the present invention, the front auxiliary plow and front and rear disc plows constituting the disc harrow, the rotating means for rotating the soil crushing and leveling device, and the soil crushing and leveling device are made lighter, and the harrow frame structure for mounting them is made lighter so that they can be mounted on small and medium-sized tractors and used, thereby increasing work efficiency so that they can be used even in narrow fields. In addition, the front auxiliary plow is mounted on both sides of the front horizontal reinforcing frame to cultivate the field pressed down by the weight of the tractor's moving wheels, thereby improving the tilling power of the front and rear disc plows sequentially mounted in the rear area. Furthermore, by connecting and fixing a horizontal connecting rod in a spring type to the circular groove of the vertical disc constituting the soil crushing and leveling device, the effect of facilitating the crushing and leveling of the tilled soil is provided.

Inventors

  • 박주택
  • 이재덕
  • 유재은

Assignees

  • 위캔글로벌 주식회사

Dates

Publication Date
20260507
Application Date
20241030

Claims (5)

  1. A disc harrow comprising: a harrow frame (10) mounted on the upper part of the front area of a three-point mounting link (2) connected to the rear of a tractor; a harrow device (40) detachably mounted on the harrow frame (10) for tilling a cultivated field; and a soil crushing and leveling device (60) rotatably mounted by a rotating means (80) mounted on the upper central area of the harrow frame (10) and rotatably provided itself for crushing and leveling the soil tilled by the harrow device (40). The above harrow frame (10) First and second lower inner vertical frames (20)(21) arranged with spacing; A front side reinforcing frame (30) comprising: an inner horizontal reinforcing member (31) fixed to the upper front side of the first lower inner vertical frame (20) in a cross direction; an inner vertical reinforcing member (32) fixed to the other end of the inner horizontal reinforcing member (31) in a cross direction; a central horizontal reinforcing member (33) fixed to the other end of the inner vertical reinforcing member (32) and the upper side of the second lower inner vertical frame (21) in a cross direction; an outer vertical reinforcing member (34) fixed to the other end of the central horizontal reinforcing member (33) in a manner corresponding to the inner vertical reinforcing member (32); and an outer horizontal reinforcing member (35) fixed to the other end of the outer vertical reinforcing member (34) in a cross direction; First and second upper outer vertical frames (22)(23) fixed to the upper ends of the inner horizontal reinforcing member (31) and outer horizontal reinforcing member (35) of the front side reinforcing frame (30) so as to cross in the front and rear directions; A lightweight disc harrow for a tractor, characterized by being composed of first and second upper inner vertical frames (25)(26) that are fixed to the rear on the upper portions of the inner and outer horizontal reinforcing members (31)(35) on one side and the other side of the inner and outer vertical reinforcing members (32)(34) above, and reinforced as a rear horizontal reinforcing member (24) between the rear portions.
  2. In paragraph 1, the harrow device (40) A front horizontal reinforcing frame (41) and a central horizontal reinforcing frame (42) that are horizontally fixed between the front and central lower surfaces of the first and second upper outer vertical frames (22) (23); A plurality of front disc plows (43) and rear disc plows (44) that are detachably connected to the front horizontal reinforcing frame (41) and central horizontal reinforcing frame (42) at equal intervals and are assembled and maintained so as to be rotatable; A lightweight disc harrow for a tractor, characterized by being composed of a front auxiliary plow (50) comprising a fixing bracket (51)(52) that is detachably fixed to both sides of the outer surface of the front horizontal reinforcing frame (41) between the front disc plows (43), an inclined mounting bracket (53) that is detachably fixed to the rear of the fixing bracket (51)(52) and is inclinedly fixed, and a front blade (54a) and a lower blade (54b) formed on the lower surface of the inclined mounting bracket (53) that is detachably fixed.
  3. In paragraph 2, the above front auxiliary plow (50) is A lightweight disc harrow for a tractor, characterized by being installed on both sides of the outer surface of the above front horizontal reinforcing frame (41) to cultivate the soil in the area where the moving wheels on both sides of the tractor pass.
  4. In paragraph 1, the soil crushing and leveling device (60) A horizontal connecting shaft (62) that is rotatably inserted and fixed as a pivot support member (61) on the rear outer surface of the first and second upper inner vertical frames (25) (26); An inclined fixing piece (64)(65) that is fixed at an angle to both ends of the horizontal connecting shaft (62) and has a bearing member (63) mounted on its lower outer surface; A vertical disc (68) that is vertically fixed at equal intervals on the outer surface of a horizontal rotating shaft (66) which is rotatably mounted between the bearing members (63), and has a plurality of circular grooves (67) formed at equal intervals on the outer surface; A circular groove (69) formed between the circular grooves (67) of the vertical disc (68); A lightweight disc harrow for a tractor, characterized by being composed of a plurality of horizontal connecting rods (70) that are inserted and connected to protrude outwardly into the circular groove (69) of the vertical disc (68).
  5. In paragraph 4, the vertical disc (68) is A lightweight disc harrow for a tractor, characterized by having circular grooves (69) arranged in an alternating manner when fixed to the outer surface of the horizontal rotating shaft (66), so that the horizontal connecting rod (70) is connected and fixed in a spring type.

Description

Lightweight disc harrow for tractors The present invention relates to a disc harrow for a lightweight tractor, and more specifically, to a harrow frame connected to the rear of the tractor by a three-point mounting link, a front auxiliary plow is mounted on the front of the harrow frame, and a front disc plow and a rear disc plow are mounted in opposite directions on the harrow frame behind the front auxiliary plow to cultivate the land, and a leveling device that is rotatable and self-rotatable is mounted as a rotational means behind the rear disc plow so that the cultivated soil is leveled without being broken and piled up. Generally, a harrow is a farming tool used to break up and flatten clods of soil generated after tilling the land with a plow, or to form ridges, mulch, cover sown seeds, or remove weeds, and is configured to rotate on its own without using the power of a tractor. Prior art for such a harrow is provided by registered patent No. 10-2612795 (Title of invention: Disc harrow for tractor). The disc harrow for a tractor according to the prior art is characterized by comprising: a harrow frame mounted on the upper part of the front region of a mounting link connected to the rear of the tractor and maintained in an elongated assembly; a plurality of harrow devices detachably mounted on the lower part of the harrow frame for tilling farmland; and a harrow device rotatably mounted by a pivoting means mounted on the upper central region of the harrow frame and itself rotatably configured to level the soil tilled by the harrow devices. The prior art configured in this manner involves mounting a chisel plow on the front of a harrow frame connected to the rear of a tractor as a mounting link, mounting a front disc plow and a rear disc plow in mutually opposite directions at the center and rear of the harrow frame behind the chisel plow to cultivate the land, and mounting a harrow device that is rotatable and self-rotating as a pivoting means at the rear of the rear disc plow so that it is stably spread downward and separated from the surface of the soil when cultivating the land as a plowing device, thereby preventing the soil generated during cultivation by the chisel plow and the soil accumulated by cultivation by the front disc plow and rear disc plow from breaking and accumulating, and as flattening is achieved, the effect of facilitating the subsequent cultivation work is provided. However, this prior art has problems such as increased structure and weight due to the need to consider the strength of the harrow frame for installing heavy chisel plows, front disc plows, and rear disc plows, as well as heavy rotating means (gearbox, cylinder, piston, etc.) for rotating the harrow device; consequently, it is economical to use large tractors with high horsepower, but it is not easy to use in narrow farmlands. FIG. 1 is a perspective view showing the entire lightweight disc harrow for a tractor according to the present invention. FIG. 2 is a side view illustrating a disc harrow for a tractor according to the present invention. FIG. 3 is a schematic diagram illustrating the harrow frame structure of a disc harrow for a tractor according to the present invention. FIG. 4 is a configuration diagram showing a state in which a soil crushing and leveling device is mounted on the harrow frame of a disc harrow for a tractor according to the present invention. FIG. 5 is a perspective view illustrating a front auxiliary plow of a disc harrow for a tractor according to the present invention. FIG. 6 is a configuration diagram illustrating a rotation means of a lightweight disc harrow for a tractor according to the present invention. FIG. 7 is a configuration diagram illustrating the usage state of a lightweight disc harrow for a tractor according to the present invention. Hereinafter, embodiments according to the present invention will be described in detail with reference to the attached drawings. Among the attached drawings, FIG. 1 is a perspective view showing the entire lightweight disc harrow for a tractor according to the present invention, FIG. 2 is a side view showing the disc harrow for a tractor according to the present invention, FIG. 3 is a view showing the harrow frame structure of the disc harrow for a tractor according to the present invention, FIG. 4 is a view showing the state in which a soil crushing and leveling device is mounted on the harrow frame of the disc harrow for a tractor according to the present invention, FIG. 5 is a perspective view showing the front auxiliary plow of the disc harrow for a tractor according to the present invention, and FIG. 6 is a view showing the rotation means of the lightweight disc harrow for a tractor according to the present invention. As illustrated in FIGS. 1 to 6, the lightweight disc harrow for a tractor according to the present invention comprises: a harrow frame (10) mounted on the upper part of the front region of a three-point mounting link (2) conne