Grass chopping composite knife set

Abstract

The utility model relates to agricultural machinery and equipment technical field, concretely relates to a kind of grass composite cutter set, including hollow six edge main shaft, still including grass cutter set, grass cutter set includes first arc moving knife, second arc moving knife, mounting ring, wedge fixed knife and mounting component, first arc moving knife and second arc moving knife are installed on hollow six edge main shaft by mounting component, mounting ring is fixedly installed on first arc moving knife and second arc moving knife, wedge fixed knife is fixedly installed on mounting ring, the cutting, throwing of material of first arc moving knife and second arc moving knife by positive and negative alternation, and further cutting of material by the shearing action formed with wedge fixed knife, to complete efficient, uniform crushing process.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery and equipment technology, and in particular to a composite grass-chopping blade assembly. Background Technology

[0002] In fields such as agricultural straw processing and silage production, the performance of material chopping equipment directly affects operational efficiency and quality. Currently, the most common straw chopping equipment employs a design with a main shaft and straight-plate moving blades or hammers. This type of equipment relies on the high-speed rotation of the main shaft to drive the moving blades or hammers to impact and strike the material, thereby achieving the purpose of crushing. Due to its simple structure and low manufacturing cost, it has certain applicability in processing dry and brittle materials.

[0003] However, the existing technologies that primarily rely on impact and striking have a fundamental drawback: their shredding efficiency is significantly reduced when dealing with vines or slender straws that are highly moist and resilient. These materials are not easily cut completely under high-speed impact and instead tend to become entangled in the high-speed rotating shaft and blades. As the entangled material accumulates, it not only reduces the effective volume of the shredding chamber and lowers working efficiency but also causes a sharp increase in equipment load, potentially leading to shutdowns. Frequent manual cleaning is then necessary, severely hindering production continuity and automation. Utility Model Content

[0004] The purpose of this invention is to provide a composite blade assembly for shredding grass, which solves the problem that existing grass-shredding blades significantly reduce their shredding effect on vines or slender straws with high moisture content and strong toughness. These materials are not easily cut completely under high-speed impact and instead tend to entangle on the high-speed rotating shaft and blades. As the entangled material accumulates, it not only reduces the effective volume of the shredding chamber and lowers working efficiency, but also causes a sharp increase in equipment load, even leading to shutdowns. Frequent manual cleaning is required, severely restricting the continuity of production and the level of automation.

[0005] To achieve the above objectives, this utility model provides a composite grass-chopping blade assembly, including a hollow hexagonal main shaft and a grass-chopping blade assembly. The grass-chopping blade assembly includes a first arc-shaped moving blade, a second arc-shaped moving blade, a mounting ring, a wedge-shaped fixed blade, and a mounting component. The first arc-shaped moving blade and the second arc-shaped moving blade are mounted on the hollow hexagonal main shaft via the mounting component. The mounting ring is fixedly mounted on the first arc-shaped moving blade and the second arc-shaped moving blade, and the wedge-shaped fixed blade is fixedly mounted on the mounting ring.

[0006] The mounting components include a cross-shaped tool holder and fastening bolts. The cross-shaped tool holder is fixedly mounted on the hollow hexagonal spindle. The first arc-shaped moving tool and the second arc-shaped moving tool are both detachably connected to the cross-shaped tool holder via the fastening bolts.

[0007] The mounting ring is also provided with cutting teeth, which are fixedly installed on the mounting ring.

[0008] The cross-shaped tool holder has a hexagonal mounting hole in the middle, which penetrates the cross-shaped tool holder.

[0009] The hollow hexagonal spindle is further provided with mounting through holes, which penetrate the hollow hexagonal spindle and are located at both ends of the hollow hexagonal spindle.

[0010] This utility model discloses a composite blade assembly for shredding grass. In use, an external power mechanism drives the hollow hexagonal main shaft to rotate at high speed, which in turn drives five sets of blades to rotate synchronously. The material is first cut and scattered by the alternating forward and reverse arc-shaped moving blades (first and second arc-shaped), then torn and brushed by the cutting teeth on the mounting ring, and finally further cut by the shearing action of the high-speed moving first and second arc-shaped moving blades and the wedge-shaped fixed blade, thus completing an efficient and uniform shredding process. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0012] Figure 1 This is a schematic diagram of the overall structure of a composite grass-chopping knife assembly according to this utility model.

[0013] Figure 2 This is a schematic diagram of the structure of the grass shredder assembly of this utility model.

[0014] Figure 3 This is a schematic diagram of the cross-shaped cutter holder of this utility model.

[0015] In the diagram: 101-Hollow hexagonal spindle, 102-First arc-shaped moving cutter, 103-Second arc-shaped moving cutter, 104-Mounting ring, 105-Wedge-shaped fixed cutter, 106-Cross cutter holder, 107-Fasting bolt, 108-Cutting teeth, 109-Hexagonal mounting hole, 110-Mounting through hole. Detailed Implementation

[0016] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0017] The embodiment of this application is as follows: Please see Figure 1-3 , Figure 1 This is a schematic diagram of the overall structure of a composite grass-chopping knife assembly according to this utility model. Figure 2 This is a structural schematic diagram of the grass-shredding knife assembly of this utility model. Figure 3 This is a schematic diagram of the cross-shaped cutter holder of this utility model.

[0018] This utility model provides a composite grass-chopping blade assembly: it includes a hollow hexagonal main shaft 101 and a grass-chopping blade assembly. The grass-chopping blade assembly includes a first arc-shaped moving blade 102, a second arc-shaped moving blade 103, a mounting ring 104, a wedge-shaped fixed blade 105, and a mounting component. The mounting component includes a cross-shaped blade holder 106 and a fastening bolt 107. The mounting ring 104 is also provided with cutting teeth 108. The cross-shaped blade holder 106 has a hexagonal mounting hole 109 in the middle. The hollow hexagonal main shaft 101 is also provided with a mounting through hole 110. The aforementioned solution solves the problem that existing grass-chopping blades have a significantly reduced chopping effect on vines or slender straws with high moisture content and strong toughness. These materials are not easily cut completely when subjected to high-speed impact, and instead tend to become entangled in the high-speed rotating main shaft and blades. As tangled material accumulates, it not only reduces the effective volume of the crushing chamber and lowers working efficiency, but also causes a sharp increase in equipment load, even leading to shutdowns. Frequent manual cleaning is required, which seriously restricts the continuity of production and the level of automation.

[0019] In this embodiment, the material is cut and scattered by the alternating forward and reverse first arc-shaped moving blade 102 and second arc-shaped moving blade 103, and further cut by the shearing action formed with the wedge-shaped fixed blade 105, thereby completing an efficient and uniform crushing process.

[0020] The first arc-shaped moving blade 102 and the second arc-shaped moving blade 103 are mounted on the hollow hexagonal main shaft 101 via the mounting member. The mounting ring 104 is fixedly mounted on the first arc-shaped moving blade 102 and the second arc-shaped moving blade 103. The wedge-shaped fixed blade 105 is fixedly mounted on the mounting ring 104. There are five sets of grass-chopping blades, evenly spaced along the axial direction of the hollow hexagonal main shaft 101. Each set of grass-chopping blades includes two first arc-shaped moving blades 102 and two second arc-shaped moving blades 103. The bending directions of the first arc-shaped moving blades 102 and the second arc-shaped moving blades 103 are opposite. The mounting ring... 104 is fixed to the first arc-shaped moving blade 102 and the second arc-shaped moving blade 103 by screws. The wedge-shaped fixed blade 105 is welded to the mounting ring 104. The wedge-shaped fixed blade 105 is arranged on both sides of the mounting ring 104, and its setting direction is parallel to the axial direction of the hollow hexagonal main shaft 101. The mounting component facilitates the installation of the first arc-shaped moving blade 102 and the second arc-shaped moving blade 103. The material is cut and scattered by the alternating forward and reverse first arc-shaped moving blade 102 and second arc-shaped moving blade 103, and the shearing action formed with the wedge-shaped fixed blade 105 further cuts the material, thereby completing an efficient and uniform crushing process.

[0021] Secondly, the cross-shaped tool holder 106 is fixedly mounted on the hollow hexagonal spindle 101. The first arc-shaped moving tool 102 and the second arc-shaped moving tool 103 are both detachably connected to the cross-shaped tool holder 106 by the fastening bolts 107. The cross-shaped tool holder 106 has four square frame-shaped mounting arms extending radially outward to form a cross structure. These mounting arms facilitate the insertion of the first arc-shaped moving tool 102 and the second arc-shaped moving tool 103. The first arc-shaped moving tool 102 and the second arc-shaped moving tool 103 are fixed on the cross-shaped tool holder 106 by the fastening bolts 107, so that the first arc-shaped moving tool 102 and the second arc-shaped moving tool 103 are fixed on the hollow hexagonal spindle 101.

[0022] Secondly, the cutting teeth 108 are fixedly installed on the mounting ring 104. The cutting teeth 108 are oblique teeth and are distributed in a ring on the outside of the mounting ring 104. The cutting teeth 108 facilitate further cutting of the material after it has been cut by the first arc-shaped moving knife 102 and the second arc-shaped moving knife 103.

[0023] Furthermore, the hexagonal mounting hole 109 penetrates the cross tool holder 106. The size of the hexagonal mounting hole 109 is the same as the outer cross-sectional size of the hollow hexagonal spindle 101. The hexagonal mounting hole 109 facilitates the fitting of the cross tool holder 106 onto the hollow hexagonal spindle 101 and further fixes it in place.

[0024] Finally, the mounting through hole 110 penetrates the hollow hexagonal spindle 101. The mounting through hole 110 is located at both ends of the hollow hexagonal spindle 101. There are two sets of mounting through holes 110. The mounting through hole 110 is a circular through hole. The mounting through hole 110 facilitates the installation of other structures such as balance blocks on the hollow hexagonal spindle 101.

[0025] In this embodiment, during use, an external power mechanism drives the hollow hexagonal main shaft 101 to rotate at high speed, and the hollow hexagonal main shaft 101 drives the five sets of grass-crushing blades to rotate synchronously. The material is first cut and scattered by the alternating forward and reverse first arc-shaped moving blades 102 and second arc-shaped moving blades 103, then torn and combed by the cutting teeth 108 on the mounting ring 104, and finally further cut by the shearing action formed by the high-speed moving first arc-shaped moving blades 102 and second arc-shaped moving blades 103 and the wedge-shaped fixed blade 105, thereby completing an efficient and uniform crushing process.

[0026] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A composite grass-chopping knife set, comprising a hollow hexagonal main shaft, characterized in that, It also includes a set of grass shredders; The grass shredder assembly includes a first arc-shaped moving blade, a second arc-shaped moving blade, a mounting ring, a wedge-shaped fixed blade, and a mounting component. The first arc-shaped moving blade and the second arc-shaped moving blade are mounted on the hollow hexagonal main shaft via the mounting component. The mounting ring is fixedly mounted on the first arc-shaped moving blade and the second arc-shaped moving blade, and the wedge-shaped fixed blade is fixedly mounted on the mounting ring.

2. The grass-chopping composite blade assembly as described in claim 1, characterized in that, The mounting components include a cross-shaped tool holder and fastening bolts. The cross-shaped tool holder is fixedly mounted on the hollow hexagonal spindle. The first arc-shaped moving tool and the second arc-shaped moving tool are both detachably connected to the cross-shaped tool holder via the fastening bolts.

3. The grass-chopping composite blade assembly as described in claim 1, characterized in that, The mounting ring is also provided with cutting teeth, which are fixedly installed on the mounting ring.

4. The grass-chopping composite blade assembly as described in claim 2, characterized in that, The cross-shaped tool holder has a hexagonal mounting hole in the middle, which penetrates the cross-shaped tool holder.

5. The grass-chopping composite blade assembly as described in claim 1, characterized in that, The hollow hexagonal spindle is also provided with mounting through holes, which penetrate the hollow hexagonal spindle and are located at both ends of the hollow hexagonal spindle.

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