Cutter head assembly with flail knives

By combining the moving blade and the swing blade design, along with bolted connections and wavy blade teeth, the problem of low efficiency and clogging in existing cutter head assemblies when crushing different materials is solved, achieving efficient crushing and stable operation.

CN224194892UActive Publication Date: 2026-05-05潍坊中海重工有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
潍坊中海重工有限公司
Filing Date
2025-04-30
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

When processing materials, the existing cutter head assembly cannot meet the crushing needs of various materials with a single moving blade, resulting in low crushing efficiency and easy clogging problems.

Method used

It adopts a combination design of moving blade and swing blade. The moving blade performs initial cutting, and the swing blade performs secondary impact. Combined with the fixed connection of bolts and nuts, it is easy to install. The swing blade is stably installed by the mounting rod and efficiently crushes materials under the action of centrifugal force. The swing blade is equipped with wavy blade teeth to enhance the crushing effect.

Benefits of technology

It improves crushing efficiency, reduces material entanglement and blockage, uses moving blades to cut hard materials and throwing blades to crush lightweight materials, ensures stable equipment operation, and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of cutterhead components, in particular to a cutterhead component with flail knives, which comprises a cutterhead body, two moving knives are arranged on the surface of the cutterhead body, two groups of flail knives are arranged on one side, far away from the moving knives, of the cutterhead body, and two bolts penetrate through the interiors of the moving knives and the cutterhead body in a sliding manner. The side wall of each bolt is in threaded connection with a nut, the movable cutters are fixedly connected to the surface of the cutter head body through the bolts and the nuts, two mounting rods are fixedly mounted in the cutter head body, and every four flail cutters form a group, and the four flail cutters are rotationally connected to the side walls of the mounting rods. According to the utility model, the movable cutter is used for primary cutting, the flail cutter is used for secondary striking, the crushing efficiency is improved, the flail cutter is added to reduce the problem of material winding and blocking, the movable cutter is used for cutting large hard materials such as corn, and the flail cutter is used for crushing light fluffy materials such as hay and straw, so that the crushing requirement on the materials is met.
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Description

Technical Field

[0001] This utility model relates to the field of cutter head assembly technology, and in particular to a cutter head assembly with a swivel blade. Background Technology

[0002] In industries such as feed processing and biomass treatment, the crushing and processing of materials is a critical step. As a core crushing component, the performance of the cutter disc assembly directly affects production efficiency and product quality.

[0003] Existing technologies often have the following drawbacks: when processing materials, a single moving blade cannot meet the crushing needs of various materials. When processing large, hard materials, the crushing efficiency is low and the equipment is prone to jamming. When processing light and loose materials, the material is prone to entanglement with the moving blade, causing the blade disc to become clogged, affecting the continuous and stable operation of the equipment, reducing overall production efficiency, and increasing production costs.

[0004] Therefore, this utility model provides a cutter head assembly with a swivel blade. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies where a single moving blade cannot meet the crushing needs of various materials, and to propose a blade disc assembly with a swivel blade.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a cutter head assembly with a swivel blade, comprising a cutter head body, wherein two moving blades are disposed on the surface of the cutter head body, and two sets of swivel blades are disposed on the side of the cutter head body away from the moving blades.

[0007] The effects achieved by the above components are: the moving blade performs initial cutting, the swing blade performs secondary impact, improving crushing efficiency; the addition of the swing blade can reduce the problem of material entanglement and blockage; the moving blade cuts large, hard materials, such as corn; and the swing blade crushes light, loose materials, such as hay and straw.

[0008] Preferably, the moving blade and the cutter head body have two bolts that slide through them, and the side walls of the bolts are threaded with nuts. The moving blade is fixedly connected to the surface of the cutter head body by means of the bolts and nuts.

[0009] The effects achieved by the above components are as follows: This connection method makes it easy to install and disassemble the moving blade, and facilitates timely replacement after the moving blade wears out, reducing maintenance costs. At the same time, the tightening effect of the bolts and nuts ensures that the moving blade is stably fixed on the cutter head body during high-speed rotation, ensuring the normal operation of the cutting operation.

[0010] Preferably, two mounting rods are fixedly installed inside the cutter head body, and the eight blades are grouped into fours, with the four blades rotatably connected to the side wall of the mounting rod.

[0011] The effects achieved by the above components are as follows: the mounting rod provides a stable mounting base for the spade blades, which can rotate flexibly around the mounting rod. When the cutter head rotates at high speed, the spade blades can fully expand with the help of centrifugal force to efficiently crush the material. In addition, this group installation method can make the spade blades evenly distributed, ensuring the consistency of the crushing effect.

[0012] Preferably, the blade has teeth on both sides.

[0013] The effect achieved by the above components is that the setting of the blade teeth increases the contact area and friction between the blade and the material, which can more effectively crush the material when it is struck, improve the crushing quality, and make the crushed material particles more uniform.

[0014] Preferably, the cutting teeth have a wavy line structure.

[0015] The effects achieved by the above components are as follows: compared with straight blades, the wavy blades can generate multiple points of force during the cutting and impacting of materials, thus enhancing the crushing effect. At the same time, the shape of the wavy lines can reduce the adhesion of materials on the blades, further reducing the risk of material entanglement and blockage.

[0016] In summary:

[0017] In this invention, the moving blade performs initial cutting, while the swing blade performs secondary impact, improving crushing efficiency. The addition of the swing blade reduces the problem of material entanglement and blockage. The moving blade cuts large, hard materials, such as corn, while the swing blade crushes light, loose materials, such as hay and straw, thus meeting the material crushing requirements. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a side view of the present invention.

[0020] Figure 3 In this utility model Figure 1 Another perspective of the planar structure.

[0021] Illustration: 1. Cutter head body; 2. Moving cutter; 3. Throwing cutter; 4. Bolt; 5. Nut; 6. Mounting rod; 7. Cutter teeth. Detailed Implementation

[0022] Reference Figure 1-3 As shown, this utility model provides a technical solution: a cutter head assembly with a swivel blade, including a cutter head body 1.

[0023] The following is a detailed explanation of its overall setup and function.

[0024] In this implementation scheme: two moving blades 2 are arranged on the surface of the cutter head body 1, and two sets of swivel blades 3 are arranged on the side of the cutter head body 1 away from the moving blades 2. The moving blades 2 perform initial cutting, and the swivel blades 3 perform secondary impact, which improves the crushing efficiency. The addition of swivel blades 3 can reduce the problem of material entanglement and blockage. The moving blades 2 cut large hard materials, such as corn, while the swivel blades 3 crush light and loose materials, such as hay and straw.

[0025] Specifically, two bolts 4 slide through the interior of the moving blade 2 and the cutter head body 1. Nuts 5 are threaded onto the side walls of the bolts 4, and the moving blade 2 is fixedly connected to the surface of the cutter head body 1 by means of the bolts 4 and nuts 5. This connection method makes it easy to install and disassemble the moving blade 2, allowing for timely replacement after wear, reducing maintenance costs. At the same time, the tightening effect of the bolts 4 and nuts 5 ensures that the moving blade 2 is stably fixed on the cutter head body 1 during high-speed rotation, ensuring normal cutting operations. Two mounting rods 6 are fixedly installed inside the cutter head body 1, with eight throwing blades 3 arranged in groups of four. The four throwing blades 3 are rotatably connected to the side walls of the mounting rods 6. The mounting rods 6 provide a stable mounting base for the throwing blades 3, allowing them to rotate flexibly around the mounting rods 6. When the cutter head body 1 rotates at high speed, the throwing blades 3 can fully expand using centrifugal force, efficiently crushing the material. This grouping installation method ensures that the throwing blades 3 are evenly distributed, guaranteeing consistent crushing results. Both sides of the throwing blades 3 are equipped with blade teeth 7. The design of the blade teeth 7 increases the contact area and friction between the blade 3 and the material, enabling more effective crushing of the material during impact, improving the crushing quality, and resulting in more uniform particle size. The blade teeth 7 have a wavy structure. Compared to straight blade teeth 7, the wavy structure of the blade teeth 7 generates multiple impact points during cutting and impacting the material, enhancing the crushing effect. Simultaneously, the wavy shape reduces material adhesion to the blade teeth 7, further reducing the risk of material entanglement and blockage.

[0026] Working principle: In actual operation, the material to be crushed is conveyed to the vicinity of the cutter head assembly. The cutter head body 1 rotates at high speed under the drive of the drive device. The moving blade 2 first performs preliminary cutting on large, hard materials entering the working area, breaking them down into smaller pieces. As the cutter head rotates, the material is thrown towards the area where the throwing blade 3 is located. The throwing blade 3 rotates at high speed under the action of centrifugal force, and performs secondary impact on the material cut by the moving blade 2 and light, loose materials. Due to the wavy cutting teeth 7 on both sides of the throwing blade 3, the material can be crushed more efficiently, making it into finer particles. The moving blade 2 is easy to install and disassemble, and easy to maintain. The throwing blade 3, through its special installation method and the design of the cutting teeth 7, can efficiently crush materials, improve the crushing quality, and effectively reduce the possibility of material entanglement and blockage. This allows the cutter head assembly to better adapt to the crushing needs of materials of different textures and improve the overall working performance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A cutter head assembly with a swivel blade, comprising a cutter head body (1), characterized in that: The surface of the cutter head body (1) is provided with two moving blades (2), and the side of the cutter head body (1) away from the moving blades (2) is provided with two sets of sling cutters (3).

2. The cutter head assembly with a swivel blade according to claim 1, characterized in that: The moving blade (2) and the cutter head body (1) are internally slidably connected by two bolts (4), and the side wall of the bolts (4) is threaded with nuts (5). The moving blade (2) is fixedly connected to the surface of the cutter head body (1) by means of the bolts (4) and nuts (5).

3. The cutter head assembly with a swivel blade according to claim 1, characterized in that: The cutter head body (1) has two mounting rods (6) fixedly installed inside, and the eight spade cutters (3) are grouped into four groups, with the four spade cutters (3) rotatably connected to the side wall of the mounting rods (6).

4. A cutter head assembly with a swivel blade according to claim 1, characterized in that: Both sides of the sling cutter (3) are provided with cutting teeth (7).

5. A cutter head assembly with a swivel blade according to claim 4, characterized in that: The cutting teeth (7) have a wavy line structure.