CN107852869B

CN107852869B - Rotary tillage cutter beneficial to purple soil, water and soil conservation

Info

Publication number: CN107852869B
Application number: CN201711378178.XA
Authority: CN
Inventors: 巨莉; 李富程; 龙莉; 蔡敏; 黎晓
Original assignee: HYDRAULIC SCIENCE RESEARCH INSTITUTE OF SICHUAN PROVINCE; Southwest University of Science and Technology
Current assignee: HYDRAULIC SCIENCE RESEARCH INSTITUTE OF SICHUAN PROVINCE; Southwest University of Science and Technology
Priority date: 2017-12-19
Filing date: 2017-12-19
Publication date: 2020-05-05
Anticipated expiration: 2037-12-19
Also published as: CN107852869A

Abstract

The invention provides a rotary tillage cutter beneficial to purple soil, water and soil conservation, and relates to the technical field of agricultural machinery. The knife tackle comprises a main knife, a left side knife and a right side knife, the main knife is inserted into the fixed pile, and the left side knife and the right side knife are symmetrically detachably connected to the left side face and the right side face of the fixed pile relative to the main knife. The problem of current rotary cultivator farming purple soil slope can produce the farming erosion and lead to the further thinization of soil layer to influence crop output is solved.

Description

Rotary tillage cutter beneficial to purple soil, water and soil conservation

Technical Field

The invention relates to the technical field of agricultural machinery, in particular to a rotary tillage cutter beneficial to purple soil, water and soil conservation.

Background

The purple soil is soil with uniform purple or purple red whole section and is mainly distributed in subtropical regions. The purple soil is shallow and thin, generally less than 50 cm, less than 1 m, fast in water and soil loss and weathering, low in organic matter content, rich in phosphorus and potassium and fertile. In real production, the thickness of a soil layer of 10-20cm is always maintained on most of the upper parts of the sloping fields, the thickness is basically determined by the cultivation depth and is far from the thickness required by the upper parts of the sloping fields to maintain basically stable productivity. The purple soil slope farmland also has the characteristics of short slope body, large slope and high farming strength. The intensive cultivation not only directly causes the loss of soil and nutrients thereof from the upper part (convex slope) of the slope farmland, but also transmits a large amount of uphill soil to a middle downhill part which is beneficial to hydraulic transportation, thereby accelerating hydraulic erosion, causing the soil quality and crop yield of the slope farmland to be reduced, and the cultivation erosion becomes an important influence factor for restricting the stable yield increase of grains and the sustainable utilization of soil in the purple soil slope farmland.

At present, the traditional cultivator for purple soil areas has manual hoe cultivation and livestock plough cultivation, in recent years, small-sized rotary cultivators are gradually widely applied, the cultivator generates obvious cultivation erosion, the thickness of a top soil layer of a slope is reduced after each cultivation, and the thickness of a bottom soil layer of the slope is increased. The purple mudstone is deposited and loosened, and is easy to break under the action of mechanical force, so that the purple mudstone is weathered into soil. The tillage erosion of the rotary cultivator is obviously reduced compared with that of the traditional tillage machine, but still obvious tillage erosion can be generated, and the top soil layer of the purple soil slope can be further thinned due to continuous and simple tillage for many years, so that the crop yield is influenced.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a rotary tillage cutter beneficial to purple soil, water and soil conservation, and solves the problem that the yield of crops is influenced because the soil layer is further thinned due to tillage erosion generated during the tillage of the existing rotary tiller in a purple soil area.

In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows:

the utility model provides a rotary tillage cutter that does benefit to purple soil water and soil and keeps which includes equilateral hexagonal prism pivot and connects a plurality of knife tackle on its surface through the spud pile, and a plurality of knife tackle are distributed on its three plane along the axial interval of hexagonal prism pivot, and three planes are not adjacent and the knife tackle quantity that distributes on every plane is the same. The knife tackle comprises a main knife, a left side knife and a right side knife, the main knife is inserted into the fixed pile, and the left side knife and the right side knife are symmetrically detachably connected to the left side face and the right side face of the fixed pile relative to the main knife.

The main knife comprises a main knife fixing end and a main knife edge formed by vertically bending one end of the main knife fixing end, which is far away from the hexagonal prism rotating shaft, wherein a widening portion is arranged at the end part of the main knife edge, and the main knife fixing end is perpendicular to a plane corresponding to the hexagonal prism rotating shaft and provided with the main knife. The left side sword includes the side sword stiff end and the side sword portion of bending perpendicularly through side sword stiff end one end, and the edge of the side sword portion of bending is provided with the blade, and the side sword stiff end of left side sword is 30 ~ 45 with the contained angle of main sword stiff end, and right side sword is the same with left side sword shape and distributes in one side at main cutting edge place back to back.

Further, the included angle between two adjacent cutter sets along the axial direction of the rotating shaft of the hexagonal prism is 120 degrees.

Further, there are six knife groups.

Further, the main cutting edges in all sets are oriented circumferentially in the same direction.

Furthermore, the hexagonal prism rotating shaft is a hollow shaft, so that the rotary tillage cutter can be sleeved on the rotating shaft of the rotary cultivator and can coaxially rotate with the rotating shaft after being fixedly connected, and the concentricity is good.

Furthermore, the fixing piles are vertically welded on the plane of the hexagonal prism rotating shaft,

further, the left side cutter and the right side cutter are connected to the fixing pile through threaded fasteners.

Furthermore, mounting holes connected with the rotary cultivator rotating shaft are formed in two ends of one plane of the hexagonal prism rotating shaft.

The invention has the beneficial effects that: the farming depth of the purple soil is increased through the main cutter, the left and right side cutters which are distributed at the front end of the main cutter and are bilaterally symmetrical fully crush the large soil blocks, the main cutter and the side cutters are matched to effectively crush the soil blocks during deep tillage in the farming process, and the farming displacement of the purple soil is reduced, so that the water and soil loss of the purple soil slope is effectively reduced. The interval and the included angle between the adjacent knife tackle have guaranteed that every knife tackle can both carry out effectual work, and do not interfere with each other. The main cutter, the left and right cutters and the fixing pile welded on the hexagonal prism rotating shaft are detachably connected through threaded fasteners, and the cutters can be conveniently cleaned and replaced.

Drawings

FIG. 1 is a perspective view of a rotary tillage cutter for facilitating the preservation of purple soil, water and soil.

Fig. 2 is a front view in the direction a of fig. 1.

Wherein, 1, a hexagonal prism rotating shaft; 11. mounting holes; 2. a knife group; 21. a main knife; 211. a main knife fixing end; 212. a main blade; 213. a widening section; 22. a left side cutter; 221. a side cutter fixing end; 222. a side cutter bending part; 223. cutting edges; 23. a right side cutter; 3. and (6) fixing the pile.

Detailed Description

The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and it will be apparent to those skilled in the art that various changes may be made without departing from the spirit and scope of the invention as defined and defined in the appended claims, and all matters produced by the invention using the inventive concept are protected.

As shown in figures 1 and 2, the rotary tillage cutter for facilitating purple soil, water and soil conservation comprises an equilateral hexagonal prism rotating shaft 1 and a plurality of cutter sets 2 connected to the outer surface of the rotating shaft through fixing piles 3. The hexagonal prism rotating shaft 1 is internally provided with a through hole matched with the rotating shaft of the rotary cultivator, two mounting holes 11 are respectively formed at two ends of one plane of the hexagonal prism rotating shaft, the rotary cultivating cutter is sleeved on the rotating shaft of the rotary cultivator and is fixedly locked through the mounting holes 11 at the two ends, so that the concentricity of the rotary cultivating cutter and the rotating shaft of the rotary cultivator during rotation is ensured.

Six fixing piles 3 are vertically welded on three of six planes of the hexagonal prism rotating shaft 1, the three planes are not adjacent, two fixing piles 3 are vertically welded on each plane, and the included angle between every two adjacent fixing piles 3 in the axial direction of the hexagonal prism rotating shaft 1 is 120 degrees. The spud pile 3 is square column body, and inside is the quad slit that runs through along length direction, is provided with two circular through-holes that run through on the side, and the axis perpendicular to quad slit's of circular through-hole axis is the face at quad slit terminal surface place with 1 welded face of hexagonal prism pivot.

The blade group 2 includes a main blade 21, a left-hand blade 22, and a right-hand blade 23. The main blade 21 includes a main blade fixing end 211 and a main blade 212 formed by vertically bending an end of the main blade fixing end 211 away from the hexagonal prism rotation shaft 1. The stiff end 211 of main sword 21 inserts the square hole of spud pile 3, and the shape and the size of square hole correspond with the appearance and the size of main sword stiff end 211 to stiff end 211 just can easily insert the square hole for the standard. The portion of the fixed end 211 inserted into the spud 3 is also provided with two circular through holes.

The left side cutter 22 includes a side cutter fixing end 221 and a side cutter bending portion 222 vertically bent through one end of the side cutter fixing end, a cutting edge is arranged at the edge of the side cutter bending portion 222, and two circular through holes are also arranged on the side cutter fixing end 221. The right blade 23 is the same size as the left blade 22.

When the cutter set 2 is installed, the main cutter fixing end 211 of the main cutter 21 is inserted into the square hole of the fixed pile 3, and then the side cutter fixing ends 221 of the left side cutter 22 and the right side cutter 23 are respectively pasted on the left side surface and the right side surface of the fixed pile 3 in parallel alignment. The included angle between the side knife fixing end 221 and the main knife fixing end 211 is 30-45 degrees and is positioned at one side of the main knife edge 212. The left side blade 22 and the right side blade 23 are installed back to back, that is, the side blade bending portions 222 of the left side blade 22 and the right side blade 23 face to the side far away from the main blade 21. Then a bolt passes through the circular through holes on the right side cutter 23, the right side surface of the fixed pile 3, the main cutter 21, the left side surface of the fixed pile 3 and the left side cutter 22 in sequence from the right side, and then the end part of the bolt is locked by a nut. A set of cutter sets 2 is installed on a fixed pile 3.

The height of the main blade 212 relative to the plane of the hexagonal prism rotating shaft 1 is preferably controlled to be 18-20 cm, and the bending degree of the main blade 212 relative to the main blade fixing end 211 is preferably controlled to be 90-100 degrees. The main blade 212 is provided with a widened portion 213 near its end and then sharply narrowed from the widened portion 213 to its end to reduce the resistance of the main blade 212 to the purple soil for an effective depth of cultivation.

When the rotary cultivator drives the rotary tillage cutter to rotate to cultivate purple soil, the left side cutter 22 and the right side cutter 23 are positioned in front of the main cutter 21 and quickly enter the soil through the cutting edges arranged at the edges of the side cutter bending parts 222, so that soil blocks are fully crushed and cultivation displacement of the purple soil is reduced.

Claims

1. A rotary tillage cutter beneficial to purple soil, water and soil conservation is characterized by comprising an equilateral hexagonal prism rotating shaft (1) and a plurality of cutter sets (2) connected to the outer surface of the hexagonal prism rotating shaft through fixing piles (3), wherein the cutter sets (2) are distributed on three planes of the hexagonal prism rotating shaft (1) at intervals along the axial direction of the hexagonal prism rotating shaft, the three planes are not adjacent, the number of the cutter sets distributed on each plane is the same, and the included angle between every two adjacent cutter sets (2) along the axial direction of the hexagonal prism rotating shaft (1) is 120 degrees; the cutter group (2) comprises a main cutter (21), a left side cutter (22) and a right side cutter (23), the main cutter (21) is inserted into the fixed pile (3), and the left side cutter (22) and the right side cutter (23) are symmetrically detachably connected to the left side surface and the right side surface of the fixed pile (3) relative to the main cutter (21);

the main knife (21) comprises a main knife fixing end (211) and a main knife edge (212) formed by vertically bending one end, far away from the hexagonal prism rotating shaft (1), of the main knife fixing end (211), a widening portion (213) is arranged at the end portion of the main knife edge (212), the main knife fixing end (211) is perpendicular to a plane corresponding to the main knife and mounted on the hexagonal prism rotating shaft (1), and the main knife edges (212) in all knife groups (2) are in the same direction along the circumference; the left side sword (22) include side sword stiff end (221) and through the perpendicular side sword portion of bending (222) of bending of side sword stiff end one end, the edge of side sword portion of bending (222) is provided with blade (223), the contained angle of side sword stiff end (221) and main sword stiff end (211) of left side sword (22) is 30 ~ 45, right side sword (23) with left side sword (22) shape, size are the same and back-to-back distribution in one side at main cutting edge (212) place.

2. A rotary tillage tool for purple soil, water and soil conservation according to claim 1, wherein the number of the blade sets (2) is six.

3. A rotary tillage tool for facilitating soil and water conservation of purple soil according to claim 1, wherein the hexagonal prism shaft (1) is a hollow shaft.

4. A rotary tillage tool for facilitating soil and water conservation of purple soil according to claim 1, wherein the spud pile (3) is welded perpendicularly to the plane of the hexagonal prism shaft (1).

5. A rotary tillage cutter for facilitating soil and water conservation of purple soil and purple soil according to claim 1, wherein the left and right blades (22, 23) are attached to the spud pile (3) by means of threaded fasteners.

6. A rotary tillage cutter beneficial to purple soil, water and soil conservation according to claim 1, wherein mounting holes (11) connected with a rotary tillage shaft are formed in two ends of one plane of the hexagonal prism rotary shaft (1).