Multipurpose anti-winding arc-shaped blade for stubble cleaning, soil crushing and stubble burying

Abstract

The utility model discloses a multipurpose anti-winding arc-shaped blade for stubble cleaning, soil breaking and stubble burying and belongs to agricultural machinery. An anti-winding arc groove is formed in the outer end face of the cutter body, outwards-protruding arc-shaped stubble cleaning cutting edges are arranged at the connecting transition positions of the anti-winding arc groove and the cutting edges on the two sides, inclined transition edges are arranged at the connecting positions of the two side edges of the cutter handle and the two side edges of the cutter body, the whole cutter body is a cutter body arc line bent towards one side, the arc radius R1 of the cutter body arc line is 120 mm, and the arc radius R2 of the cutter body arc line is 120 mm. The working breadth L of the knife body is 48mm, the arc radius R2 of the anti-winding arc groove is 86mm, the arc radius R3 of the convex arc stubble cleaning cutting edge is 10mm, the width size B of the knife body and the width size C of the knife handle are 72mm and 65mm respectively, the included angle beta between the transition edge and the side edge of the knife handle is 169 degrees, the included angle alpha of the soil crushing cutting edge of the knife edge is 15-16 degrees, the width size A of the soil crushing cutting edge is 1mm, and the thickness size t of the knife body is 5-6mm; the blade is multipurpose, low in power consumption, low in failure rate, light in abrasion and good in operation effect.

Description

TECHNICAL FIELD

[0001] The utility model belongs to agricultural machinery, mainly relates to a kind of arc blade with stubble, broken soil, bury stubble and prevent winding multifunctional purposes. BACKGROUND

[0002] At present, the stubble cleaning cutter shaft and rotary tillage cutter shaft are combined in front and back in the rotary tillage and stubble cleaning combined land preparation machine, and the stubble cleaning cutter shaft arranged in front is used to remove and crush root stubble first, and then the rotary tillage cutter shaft is used to crush soil. Since the operation objects are different, the stubble cleaning cutter and the rotary tillage cutter are two different structural forms and technical parameters of cutters, which cannot be used universally and interchangeably, and the operation performance is single. The two cutters not only have large operation power consumption, are easy to wear and have short service life, but especially are easily wound by weeds, straws and other sundries during operation, causing failure and unable to operate normally, which greatly affects and reduces the operation efficiency and operation effect of the rotary tillage and stubble cleaning combined land preparation machine, and the overall configuration structure of the rotary tillage and land preparation combined land preparation machine is complex and has high manufacturing cost. SUMMARY

[0003] The utility model aims at the problems existing in the prior art, and combines the actual needs of the stubble cleaning, broken soil and bury stubble combined land preparation operation to develop and design a new structure of stubble cleaning, broken soil and bury stubble multi-purpose anti-winding arc blade, so as to achieve the purposes of full operation function, one cutter with multiple functions, strong universality, wear resistance, long service life, small power consumption, high operation efficiency, few failures and good anti-winding effect.

[0004] The basic design of the utility model is that an anti-winding circular arc groove with concave arc surface is arranged on the outer end surface of the cutter body, an outer convex circular arc stubble cleaning edge is arranged at the transition part between the anti-winding circular arc groove and the cutting edges on both sides, and a transition edge arranged at an inclination is arranged at the cutting edge connection part between the two side edges of the cutter handle and the two side edges of the cutter body. The cutter body as a whole presents a curved cutter body arc line to one side, the circular arc radius R1 of the cutter body arc line is 120 mm, the operation width L of the cutter body is 48 mm, the circular arc radius R2 of the anti-winding circular arc groove is 86 mm, the circular arc radius R3 of the outer convex circular arc stubble cleaning edge is 10 mm, the width size B of the cutter body and the width size C of the cutter handle are 72 mm and 65 mm respectively, the included angle β between the transition edge and the side edge of the cutter handle is 169°, the stubble crushing edge angle α of the cutting edge is 15-16°, the width size A of the stubble crushing edge is 1 mm, and the thickness size t of the cutter body is 5-6 mm, thereby forming the stubble cleaning, broken soil and bury stubble multi-purpose anti-winding arc blade.

[0005] The blade body part adopts arc line shape, and the stubble removing, soil crushing and stubble burying operations are difficult to entangle and drag the straw and weeds on the blade, and the scientific and reasonable technical parameter selection is matched, so that the blade has the characteristics of one tool with multiple uses, high generalization degree, wide use range, low power consumption, low failure rate, long service life and good operation effect, the application of the blade simplifies the structural design of the rotary tillage and land preparation combined operation machine tool, and the tool manufacturing cost is greatly reduced, and the economic benefit is outstanding. BRIEF DESCRIPTION OF DRAWINGS

[0006] Figure 1 is a total structure schematic diagram of the stubble removing, soil crushing and stubble burying multipurpose anti-winding arc-shaped blade;

[0007] Figure 2 is Figure 1 the left view;

[0008] Figure 3 is Figure 1 the A-A sectional view of

[0009] Explanation of reference numerals in the drawing:

[0010] 1, blade edge, 2, blade body, 3, anti-winding arc-shaped groove, 4, outer convex arc-shaped stubble removing edge, 5, mounting hole, 6, handle, 7, blade body arc line, 8, soil crushing edge, 9, transition edge. DETAILED DESCRIPTION

[0011] The utility model discloses a stubble removing, soil crushing and stubble burying multipurpose anti-winding arc-shaped blade, and the blade body 2 is fixed on the outer side end of the handle 6 with the mounting hole 5, the blade edge 1 is arranged on the opposite two sides of the blade body 2 respectively, the anti-winding arc-shaped groove 3 of inner recessed arc surface is arranged on the outer end surface of the blade body 2, the outer convex arc-shaped stubble removing edge 4 is arranged at the transition position of the anti-winding arc-shaped groove 3 and the blade edge 1 on two sides, the transition edge 9 of inclined configuration is arranged at the connecting position of the blade edge 1 of the two side edges of the handle 6 and the two side edges of the blade body 2, the blade body 2 as a whole is the blade body arc line 7 that bends to one side, the arc radius R1 of the blade body arc line 7 is 120mm, the operation width L of the blade body 2 is 48mm, the arc radius R2 of the anti-winding arc-shaped groove 3 is 86mm, the arc radius R3 of the outer convex arc-shaped stubble removing edge 4 is 10mm, the width size B of the blade body 2 and the width size C of the handle 6 are 72mm and 65mm respectively, the angle β of the transition edge 9 and the side edge of the handle 6 is 169 DEG, the angle α of the soil crushing edge 8 of the blade edge 1 is 15-16 DEG, the width size A of the soil crushing edge 8 is 1mm, and the thickness size t of the blade body 2 is 5-6m.

[0012] When the tool is used, the arc-shaped blade is fixed on the stubble cleaning and soil breaking blade shaft through the mounting hole 5, rotates with the shaft, and completes the soil breaking rotary tillage through the soil breaking edge 8 and the outer convex circular arc-shaped stubble cleaning edge 4 at the periphery of the blade body 2, and completes the soil throwing and stubble burying treatment through the whole blade body 2. In the operation, the anti-winding circular arc groove 3 at the outer end surface of the blade body 2 avoids and eliminates the winding of the roots, straws and other sundries on the blade body 2, and reduces the failure rate. The reasonable design and determination of the technical parameters ensure the operation quality and effect of the whole blade, and reduce the power consumption and blade wear rate.

Claims

1. A multi-purpose anti-entanglement arc-shaped blade for stubble burial and soil crushing, wherein a blade body (2) is fixedly mounted on the outer end of a handle (6) with a mounting hole (5), and blade edges (1) are respectively provided on opposite sides of the blade body (2), characterized in that: The invention discloses a kind of curved blade cutting tool, including handle (6), blade body (2) and blade edge (1), it is characterized by: the outer end surface of the blade body (2) is provided with the inner concave arc surface anti-winding circular arc groove (3), the outer convex circular arc shape stubble blade edge (4) is arranged in the transition part of anti-winding circular arc groove (3) and the blade edge (1) of two sides, the transition edge (9) of inclined configuration is arranged in the connecting part of the blade edge (1) of two sides edges of handle (6) and the blade body (2), the blade body (2) is overall curved to one side blade body arc line (7), the circular arc radius R1 of blade body arc line (7) is 120mm, the operation width L of blade body (2) is 48mm, the circular arc radius R2 of anti-winding circular arc groove (3) is 86mm, the circular arc radius R3 of outer convex circular arc shape stubble blade edge (4) is 10mm, the width size B of the blade body (2) and the width size C of handle (6) are 72mm and 65mm respectively, the angle β of transition edge (9) and handle (6) side edge is 169 °, the angle α of soil breaking blade edge (8) of the blade edge (1) is 15-16 °, the width size A of soil breaking blade edge (8) is 1mm, the thickness size t of blade body (2) is 5-6mm.

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