CN102960127B - The dual-purpose straw-returning of floods and droughts ploughs whole rotor - Google Patents

Abstract

The invention discloses a plowing knife roller for both flood and drought purposes, which includes a cutter shaft, outer cutter heads installed at both ends of the cutter shaft, a plurality of inner cutter heads and knife holders installed on the cutter shaft, and the outer cutter head A plurality of outer scimitars are installed on the inner end face of the inner cutter head and both sides of the inner cutter head, and a spiral horizontal knife is arranged between the outer scimitars on the opposite end faces of the outer cutter head and the inner cutter head. 50~60 serrations are evenly distributed on the cutting edge, and the knife seat is arranged on the knife shaft in a spiral manner, and the inner curved knife is installed on the knife seat. The invention adopts the spiral horizontal knife with sawtooth and the inner and outer scimitars installed on the knife shaft to cut the soil into squares in an orderly manner, and can crush the straw and bury it evenly in the plow layer; bury it under the soil The straw can accelerate the rate of erosion, can provide more organic matter to the soil, and reduce the use of chemical fertilizers. <!--1-->

Description

Flood and drought dual-purpose straw returning to the field plowing knife roller

technical field

The invention relates to agricultural plowing machinery, in particular to a paddle and drought dual-purpose straw returning plowing knife roller.

Background technique

Crop straw is the main by-product formed in the process of agricultural production and one of the important renewable biological resources. Now, with the development of the rural economy, straw is no longer the main fuel. In order to facilitate the planting of stubble crops, people burn straw on the spot, which not only pollutes the air, but also makes the soil harden, destroys the soil structure, and reduces soil fertility. and deterioration of arable land. Straw returning to the field has the advantages of increasing soil organic matter content, increasing soil nutrients, reducing the amount of chemical fertilizers, and improving soil physical and chemical properties and texture.

In recent years, in order to solve the technical problems of returning straw to the field, people have developed some machinery for returning straw to the field, such as the utility model patent ZL99248205.4 "Double Roller Straw Returning Tiller", the working part of which includes the front rotary tillage crushing knife roller and post-rotary tillage covering knife roller, through the joint action of the two, the straw is crushed and returned to the field, but there are problems such as large power consumption and heavy mechanical load. The utility model patent ZL00226608.3 "rotary cultivator with the function of returning straw to the field" uses a belt to drive the cutter shaft of the rotary cultivating machete, but it is prone to slipping due to excessive load, which makes the straw cannot be returned to the field normally. . Utility model patent ZL200710141508.3 "Paddy field stubble burying machine", a stubble pressing roller is installed behind the coulter shaft, and the stubble pressing roller rolls randomly to press the stalks under the rotary tillage into the soil, but there is a large power consumption, and the mechanical Heavy load, easy to hang grass, grass and other problems. The utility model patent ZL200820041185.0 "straw returning machine" is mainly composed of a gear box, a frame, a side plate of the frame, a straw cutting and embedding mechanism respectively installed on the side plates of the frame, and a mechanism installed between the side plates of the frame. Composed of a grass-pressing and leveling mechanism, one machine can be used for multiple purposes, and the utilization rate of large and medium-sized tractors can be improved, but the straw coverage rate is not high. Utility model patent ZL200820066760.2 "suspended multi-purpose farmland tillage operation machine", designed a single combination that can be combined with a soil loosening blade, a soil loosening machete or other soil working parts according to different agronomic requirements The cutter head has added working parts such as tension spring dampers and split pressure rollers, which can simultaneously complete agronomic complex operations such as plowing, stubble removal, grass burying, suppression, and moisture conservation in the process of farmland plowing, but the structure of the cutter head is complicated. , The problem of low straw coverage. The utility model patent ZL200820214707.2 "Paddy Field Straw Burying Rotary Tiller" can complete functions such as paddy field straw burying, crushed soil, and straw mulching, but the surface level is not high after tillage.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies of the prior art, and to provide a dual-purpose straw returning plow knife roller for flood and drought.

In order to achieve the above-mentioned purpose, the rice and dry dual-purpose straw returning plow cutter roller designed by the present invention includes a cutter shaft, an outer cutter disc installed at both ends of the cutter shaft, and a plurality of inner cutter discs and knife holders installed on the cutter shaft , a plurality of outer scimitars are installed on the inner end face of the outer cutter head and the two side end faces of the inner cutter head, and a spiral horizontal knife is arranged between the outer scimitars on the opposite end faces of the outer cutter head and the inner cutter head , 50 to 60 sawtooths are evenly distributed on the cutting edge of each spiral horizontal knife, and the knife seat is arranged on the knife shaft in a spiral manner, and an inner machete is installed on the knife seat. In this way, the knife seat surrounds each section of the knife shaft in a helical manner. This arrangement is coordinated with the spiral horizontal knife to ensure the continuity of the inner machete cutting soil on the knife seat, and to cut and divide the straw and soil in advance, which is beneficial The subsequent spiral knife roller performs rotary tillage and burial of soil and straw, and can make the force more balanced at the same time.

In the above scheme, the inner cutter head divides the cutter shaft between the two outer cutter heads evenly into two sections, the length of each section of the cutter shaft is 310-340 mm, and the helical direction of the helical horizontal knives on each section of the cutter shaft is the same , the helical directions of the helical horizontal knives on two adjacent knife shafts are different, and the helix angle of the helical horizontal knives is 20°-30°. The farming width can be increased according to the number of sections on the basis of two sections.

Further, the knife seats are arranged in 5 rows around each section of the knife shaft, and each row is arranged with 3 or 4 knife seats.

Further, five identical outer machetes are installed on the inner end surface of the outer cutter head and the two side end faces of the inner cutter head.

Further, the outer end surface of the outer cutter head is respectively 90-130mm away from the outer end surface of the cutter shaft.

Further, the cutter shaft is provided with an outer cutter head, an inner cutter head or a cutter seat with a diameter of 40-50 mm.

The beneficial effects of the present invention are:

1. The present invention adopts the sawtoothed spiral horizontal knife and the inner and outer curved knives installed on the knife shaft to cut the soil into squares in an orderly manner, and can knead the straw. Crushed and evenly buried in the tillage layer; the straw buried under the soil accelerates the rate of corrosion, can provide more organic matter for the soil, and reduce the use of chemical fertilizers.

2. The average plowing depth of the present invention is 120mm for both flood and dry use of straw returning to the field. After adding a cover, a suspension frame and a supporting plate device, it is used in conjunction with a tractor to complete stalk pressing, rotary tillage, The multi-channel joint operation process such as pulping, burying, crushing soil, and leveling fully meets the agronomic requirements for sowing and planting of the next crop. Its cultivation quality is obviously better than that of traditional rotary tillers, realizing one machine with multiple functions.

3. The basic plowing width of the whole knife roller of the present invention is 700mm, which can be designed into a series of machines with different widths, and is widely suitable for direct burying and plowing of high-stubble straw in paddy fields and dry lands in the north and south. The whole operation, the operation effect can fully meet the sowing and planting requirements of the next crop of flood and drought crops.

Description of drawings

Fig. 1 is a structural schematic diagram of the whole knife roller for paddy and dry straw returning to the field.

Fig. 2 is a schematic diagram of the structure of the spiral horizontal knife in Fig. 1 .

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Fig. 1, the knife roller for paddy and drought dual-purpose straw returning to field plowing includes a cutter shaft 1, an outer cutter disc 2 installed at both ends of the cutter shaft 1, an inner cutter disc 4 and a knife seat 3 installed on the cutter shaft 1 . The inner cutter head 4 evenly divides the cutter shaft 1 between the outer cutter heads 2 at both ends into two sections, and each section of the cutter shaft 1 is 331mm long. Five identical outer machetes 5 are all installed on the inner end face of the outer cutter head 2 and the both side end faces of the inner cutter head 4 .

A spiral horizontal knife 6 is arranged between the outer machetes 5 on the opposite end faces of the outer cutter head 2 and the inner cutter head 4, and the helix angle of the spiral horizontal knife 6 is 25°. As shown in Figure 2, 55 serrations 6.1 are evenly distributed on the cutting edge of each helical horizontal knife 6. The helical horizontal knives 6 on each cutter shaft 1 have the same helical direction, the helical horizontal knives 6 on two adjacent cutter shafts 1 have different helical directions, and the helical horizontal knives 6 on one side of the cutter shaft 1 are left helical Horizontal knife, the spiral horizontal knife 6 right spiral horizontal knife on the other side cutter shaft 1.

Knife holders 3 surround each section of cutter shaft 1 in a helical manner and are arranged in 5 rows, with 3 or 4 knife holders 3 arranged in each row, and inner machetes 7 are housed on the knife holders 3 .

The outer end surface of the outer cutter head 2 is respectively 90-130 mm away from the outer end surface of the cutter shaft 1 . The cutter shaft 1 is provided with an outer cutter head 2, an inner cutter head 4 or a cutter seat 3 with a diameter of 40-50mm. The left end of the cutter shaft 1 has a shaft section with a keyway, which is connected with the side gear box, and the right end of the cutter shaft 1 is installed on the frame side plate.

The working principle of the present invention is as follows:

When in use, by adding a cover, a suspension frame and a supporting plate device on the straw-returning knife roller for both water and dry uses of the present invention, it is connected with a boat-type tractor in a three-point suspension manner, and is powered by the boat-type tractor. The output shaft of the boat tractor transmits the power to the side gearbox after being decelerated by the central chain transmission. After being decelerated by the side gearbox, it is transmitted to the cutter shaft 1. The required speed of the cutter shaft 1 is 280r/min. When moving forward, the spiral horizontal knife 6 with sawtooth 6.1 on the knife shaft 1 first cuts the soil horizontally, and then the outer curved knife 5 and the inner curved knife 7 cut the soil vertically, cutting the fields covered with straw in an orderly manner At the same time, crush the straw and bury it to complete the functions of rotary tillage, burying straw, and crushing soil.

Claims (1)

1. A plowing knife roller with dual-purpose straw returning to the field for flood and drought, comprising a knife shaft (1), outer cutter heads (2) installed at both ends of the knife shaft (1) and a plurality of blades mounted on the knife shaft (1). The inner cutter head (4) and the knife seat (3) are characterized in that: a plurality of outer machetes (5 ), a spiral cross knife (6) is arranged between the outer machete (5) on the opposite end face of the outer cutter head (2) and the inner cutter head (4), and the cutting of each spiral cross knife (6) 55 serrations (6.1) are evenly distributed on the cutting edge, the knife seat (3) is arranged around the knife shaft (1) in a helical manner, and the inner machete (7) is installed on the knife seat (3) ; The inner cutter head (4) divides the cutter shaft (1) between the outer cutter heads (2) at two ends evenly into two sections, each section of the cutter shaft (1) is 331mm long, and each section of the cutter shaft (1) The helical direction of rotation of the helical horizontal knife (6) on the top is the same, and the helical direction of the helical horizontal knife (6) on two adjacent knife shafts (1) is different, and the helical angle of described helical horizontal knife (6) is 25°; the knife seat (3) surrounds each section of the knife shaft (1) and is arranged in 5 rows, and each row is arranged with 3 or 4 knife seats (3); the inner end surface of the outer cutter head (2) 5 identical outer scimitars (5) are installed on both sides of the inner cutter head (4); the outer end faces of the outer cutter head (2) are respectively 90 to 130 mm from the outer end faces of the cutter shaft (1) ; The cutter shaft (1) is provided with an outer cutter head (2), an inner cutter head (4) or a cutter seat (3) with a diameter of 40-50 mm.