Rotary cultivator shaft assembly

Abstract

The utility model relates to agricultural machinery technology field, and the utility model discloses a rotary cultivator blade shaft assembly, the utility model discloses in order to solve the rotary cutting speed of the rotary cultivator rotating tillage part in the prior art is slow, and the chopping capacity is poor, and in the humid environment, the soil of bending blade is often with mud ball when crushing, and the adaptability to soil is poor, and tractor needs multiple operations, and multiple operations lead to farmland compaction, and the rotary cultivator tool is seriously damaged and the like problem. The utility model discloses a blade shaft and a plurality of rotary tillage tool groups set on the blade shaft along the axial direction, and the rotary tillage tool group is composed of a blade disc and a plurality of rotary tillage blades arranged radially around the blade shaft, the rotary tillage blade includes three left rotary tillage blades and three right rotary tillage blades, and the rotary tillage blade is divided into three groups, each group of rotary tillage blade is composed of a left rotary tillage blade and a right rotary tillage blade, the blade disc is fixedly connected to the blade shaft, and the left rotary tillage blade and the right rotary tillage blade are both installed on the blade disc. The utility model is used for straw returning to field.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, specifically to a rotary tiller cutter shaft assembly. Background Technology

[0002] Returning crop straw to the field is a widely recognized measure to improve soil fertility and increase yields. While eliminating air pollution caused by straw burning, it also enhances soil fertility and increases crop productivity. Crop straw is rich in organic matter and various nutrients, making it a valuable source of fertilizer. Returning straw to the field increases soil organic matter, improves soil structure, loosens the soil, increases porosity, reduces bulk density, and promotes microbial activity and crop root development.

[0003] Currently, most agricultural machinery operates straw and stubble return technologies separately. Crop straw is above-ground agricultural waste, while stubble is below-ground agricultural waste. With agricultural mechanization, mechanical methods are used for straw and stubble return. Currently, rotary tillers are commonly used, but their rotating cutting components have a slow cutting speed and poor shredding ability. In humid environments, the curved blades often break up soil with mud clumps, resulting in poor soil adaptability. Tractors need to operate multiple times, leading to farmland compaction, wasting manpower and resources, and causing serious wear and tear on the rotary tiller blades. Utility Model Content

[0004] The purpose of this invention is to solve the problems of slow rotation and cutting speed of the rotary tillage components of existing rotary tillers, poor shredding ability, frequent mud clumps when the blades break up soil in humid environments, poor soil adaptability, the need for multiple tractor operations, and the resulting compaction of farmland and severe wear on the rotary tillage blades. Therefore, this invention provides a rotary tiller blade shaft assembly.

[0005] The technical solution adopted by this utility model to solve the above problems is: a rotary tiller cutter shaft assembly, including a cutter shaft and a plurality of rotary tiller blades arranged axially on the cutter shaft; the rotary tiller blade assembly consists of a cutter disc and a plurality of rotary tiller blades arranged radially around the cutter shaft, the rotary tiller blades including three left rotary tiller blades and three right rotary tiller blades, the rotary tiller blades are divided into three groups, each group of rotary tiller blades consisting of one left rotary tiller blade and one right rotary tiller blade, the cutter disc is fixed to the cutter shaft, and both the left rotary tiller blades and the right rotary tiller blades are mounted on the cutter disc.

[0006] Furthermore, the included angle α between the left and right rotary tillage blades in each group of rotary tillage blades is 20°-42°, and both the left and right rotary tillage blades are provided with cutting edges.

[0007] Furthermore, the left and right rotary blades in each group of rotary blades rotate in opposite directions.

[0008] Furthermore, the rotary tillage blades are distributed at a spacing of 250mm-400mm on the blade shaft.

[0009] Furthermore, the working rotation radius R of the rotary tillage blades in the blade shaft assembly is 200mm-400mm.

[0010] Furthermore, the cutter head is provided with screw through holes, and both the left rotary tiller blade and the right rotary tiller blade are fixedly connected to the cutter head by screws passing through the screw through holes.

[0011] Furthermore, the cutting edges on both the left-hand rotary tiller blade and the right-hand rotary tiller blade are configured as blade inserts, which are connected to the left-hand rotary tiller blade or the right-hand rotary tiller blade by bolts. The blade inserts are made of YG15C cemented carbide.

[0012] Furthermore, a first flange and a second flange are respectively provided at both ends of the cutter shaft.

[0013] This utility model has the following beneficial technical effects:

[0014] This utility model's rotary tillage component improves the cutting speed of the rotary tillage blades by setting the angle and rotation radius of the blades. By arranging the left-hand rotary tillage blades and the blade disc, it enhances the ability to chop straw and stubble and the soil-breaking effect. It can chop both straw and stubble, burying a large amount of straw and stubble, achieving the goal of returning all straw and stubble to the field. Even in a moist environment, the soil will not form mud clumps, enhancing its adaptability to the soil. One tillage operation achieves the effect of multiple tillage operations, improving tillage efficiency.

[0015] The blades on the rotary tiller blades of this utility model are all set as blade inserts. The blade inserts are connected to the rotary tiller blades by bolts. The blade inserts are made of YG15C cemented carbide. YG15C cemented carbide has excellent wear resistance and corrosion resistance, and its hardness can reach more than 520HV. When the rotary tiller blades are worn, the blade inserts can be replaced, thereby improving tillage efficiency and reducing production costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the cutter head assembly;

[0018] Figure 3 yes Figure 2 The left view;

[0019] Figure 4 This is a schematic diagram of another embodiment of the present invention;

[0020] In the diagram: 1. Cutter shaft; 2. First flange; 3. Second flange; 4. Cutter head; 5. Left rotary tiller blade; 6. Right rotary tiller blade; 7. Screw; 8. Blade insert. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the following description, in conjunction with the accompanying drawings and embodiments, provides a more detailed explanation of this utility model. The specific embodiments described are only for explaining this utility model and are not intended to limit it.

[0022] Specific implementation method one: Combining Figures 1 to 4 This embodiment describes a rotary tiller blade shaft assembly, comprising a blade shaft 1 and a plurality of rotary tiller blades arranged axially on the blade shaft 1. The rotary tiller blade assembly consists of a blade disc 4 and a plurality of rotary tiller blades arranged radially around the blade shaft 1. The rotary tiller blades include three left rotary tiller blades 5 and three right rotary tiller blades 6. The rotary tiller blades are divided into three groups, each group consisting of one left rotary tiller blade 5 and one right rotary tiller blade 6. The blade disc 4 is fixed to the blade shaft 1, and both the left rotary tiller blades 5 and the right rotary tiller blades 6 are mounted on the blade disc 4.

[0023] Specific Implementation Method Two: Combining Figures 1 to 4 In this embodiment, the included angle α between the left rotary tiller blade 5 and the right rotary tiller blade 6 in each group of rotary tiller blades is 20°-42°, and both the left rotary tiller blade 5 and the right rotary tiller blade 6 are provided with cutting edges.

[0024] In a preferred embodiment, the left rotary tiller blade 5 and the right rotary tiller blade 6 in each set of rotary tiller blades rotate in opposite directions.

[0025] In a preferred embodiment, the rotary tiller blades are distributed at a spacing of 250mm-400mm on the blade shaft 1.

[0026] In a preferred embodiment, the working rotation radius R of the rotary tillage blades of the blade shaft assembly is 200mm-400mm.

[0027] The other components and connections are the same as in Specific Implementation Method 1.

[0028] Specific implementation method three: Combining Figures 1 to 4 In this embodiment, the cutter head 4 is provided with screw through holes, and the left rotary tiller blade 5 and the right rotary tiller blade 6 are both fixedly connected to the cutter head 4 by screws 7 passing through the screw through holes.

[0029] In a preferred embodiment, the cutting edges of both the left-hand rotary tiller blade 5 and the right-hand rotary tiller blade 6 are configured as blade inserts 8, which are connected to the left-hand rotary tiller blade 5 or the right-hand rotary tiller blade 6 by bolts. The blade inserts 8 are made of YG15C cemented carbide.

[0030] The blades on the rotary tiller blades of this utility model are all set as blade inserts 8. The blade inserts 8 are connected to the rotary tiller blades by bolts. The blade inserts 8 are made of YG15C cemented carbide. YG15C cemented carbide has excellent wear resistance and corrosion resistance, and its hardness can reach more than 520HV. When the rotary tiller blades are worn, the blade inserts 8 can be replaced, thereby improving tillage efficiency and reducing production costs.

[0031] The other components and connections are the same as in Specific Implementation Method 2.

[0032] Specific implementation method four: Combination Figures 1 to 4 This embodiment describes a rotary tiller where a first flange 2 and a second flange 3 are respectively provided at both ends of the cutter shaft 1. The present invention provides a rotary tiller cutter shaft assembly that is rotatably connected to the rotary tiller via the first flange 2 and the second flange 3 at both ends of the cutter shaft 1.

[0033] The other components and connections are the same as in Specific Implementation Method 3.

[0034] The working principle of this utility model is as follows:

[0035] This utility model is a rotary tiller cutter shaft assembly, including a cutter shaft 1 and multiple rotary tiller blades arranged axially on the cutter shaft 1; the rotary tiller blade assembly consists of a cutter disc 4 and six rotary tiller blades arranged radially around the cutter shaft 1. The rotary tiller blades include three left rotary tiller blades 5 and three right rotary tiller blades 6. The rotary tiller blades are divided into three groups, each group consisting of one left rotary tiller blade 5 and one right rotary tiller blade 6. The cutter disc 4 is fixed to the cutter shaft 1, and both the left rotary tiller blades 5 and the right rotary tiller blades 6 are mounted on the cutter disc 4.

[0036] This utility model relates to a rotary tillage component. By increasing the overall rotation radius of the rotary tillage component, the cutting speed of the rotary tillage blades is improved. By setting the included angle and the arrangement of the cutter disc 4 for each set of left and right rotary tillage blades 5, the ability to chop straw and stubble and the soil breaking effect are enhanced. It can chop both straw and stubble, and cover a large amount of straw and stubble to achieve the purpose of returning all straw and stubble to the field. Even in a wet environment, the soil will not be muddy, which enhances the adaptability to the soil. One tillage can achieve the effect of multiple tillages, thus improving tillage efficiency.

[0037] The blades on the rotary tiller blades of this utility model are all set as blade inserts 8. The blade inserts 8 are connected to the rotary tiller blades by bolts. The blade inserts 8 are made of YG15C cemented carbide. YG15C cemented carbide has excellent wear resistance and corrosion resistance, and its hardness can reach more than 520HV. When the rotary tiller blades are worn, the blade inserts 8 can be replaced, thereby improving tillage efficiency and reducing production costs.

[0038] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A rotary cultivator toolbar assembly, characterized by: It includes a cutter shaft (1) and multiple rotary tillage blades arranged axially on the cutter shaft (1); The rotary tiller assembly consists of a cutter head (4) and multiple rotary tiller blades arranged radially around the cutter shaft (1). The rotary tiller blades include three left rotary tiller blades (5) and three right rotary tiller blades (6). The rotary tiller blades are divided into three groups, each group consisting of one left rotary tiller blade (5) and one right rotary tiller blade (6). The cutter head (4) is fixed to the cutter shaft (1), and the left rotary tiller blades (5) and the right rotary tiller blades (6) are both mounted on the cutter head (4). The included angle α between the left rotary tillage blade (5) and the right rotary tillage blade (6) in each group of rotary tillage blades is 20°-42°, and both the left rotary tillage blade (5) and the right rotary tillage blade (6) are provided with blades; The blades on the left rotary tiller (5) and the right rotary tiller (6) are both set as blade inserts (8). The blade inserts (8) are connected to the left rotary tiller (5) or the right rotary tiller (6) by bolts. The blade inserts (8) are made of YG15C cemented carbide.

2. The gang implement shaft assembly of claim 1, wherein: In each group of rotary tillage blades, the left rotary tillage blade (5) and the right rotary tillage blade (6) rotate in opposite directions.

3. The gang blade assembly of claim 1, wherein: The rotary tillage blades are distributed on the blade shaft (1) at a spacing of 250mm-400mm.

4. The gang implement shaft assembly of claim 1, wherein: The working rotation radius R of the rotary tillage blades in the cutter shaft assembly is 200mm-400mm.

5. The gang implement shaft assembly of claim 1, wherein: The cutter head (4) has a screw through hole, and the left rotary tiller blade (5) and the right rotary tiller blade (6) are fixedly connected to the cutter head (4) by screws (7) passing through the screw through hole.

6. The rotary tiller cutter shaft assembly according to claim 1, characterized in that: The cutter shaft (1) is provided with a first flange (2) and a second flange (3) at both ends.

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