Crushing cutter structure and crusher

Abstract

The utility model belongs to the field of crushing cutters, and provides a crushing cutter structure and a crusher, which comprises a mounting shaft, a first fixed cutter rest and a second fixed cutter rest are arranged on the mounting shaft, and the two ends of the mounting shaft can be divided into a first mounting area and a second mounting area through the first fixed cutter rest and the second fixed cutter rest; the first mounting area is used for being connected with the output end of the driving part, and the second mounting area is used for being connected with the position of the fixed mounting shaft. Compared with the prior art, the tool has the advantages that the tool main body is made of tungsten steel and is embedded in the tool rest after being subjected to heat treatment, so that not only can the thermal deformation of the tool caused by welding be effectively avoided, but also the corrosion and oxidation of materials caused by welding seams can be avoided, the welding process is reduced, and the hardness and the wear resistance of the tool are greatly enhanced; and meanwhile, the optimized cutting angle design further improves the crushing efficiency, the dip angle design is more beneficial to bringing the plastic film bags into a crushing area, and the risk of bag blockage is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of crushing tools, specifically relating to a crushing tool structure and a crusher. Background Technology

[0002] With the rapid development of technology, people's requirements for machining (such as crushing operations) are increasing, which makes the quality of the cutting tools themselves particularly important.

[0003] Traditional crushing equipment faces multiple challenges when processing materials, mainly due to insufficient blade hardness, unreasonable design, and lack of effective fixing measures. For example, traditional blades are prone to thermal deformation during frequent processing, and welded blades often suffer from corrosion and oxidation due to the weld seams, which seriously affects the quality of subsequent product processing. Moreover, the blade edge is mostly set parallel to the blade holder spindle, which also makes it easy to cause bag blockage when crushing plastic film bags. These problems not only affect crushing efficiency and quality but also increase operational risks. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, the technical problem to be solved by this utility model is to propose a crushing tool structure and crusher with simple overall structure, high precision and good rigidity, which meets the required crushing requirements.

[0005] The technical solution adopted by this utility model to solve its technical problem is to propose a crushing tool structure, including: a mounting shaft, on which a first fixed tool holder and a second fixed tool holder are configured. The two ends of the mounting shaft can be divided into a first mounting area and a second mounting area by the first fixed tool holder and the second fixed tool holder. The first mounting area is used to connect the output end of the driving component, and the second mounting area is used to connect and fix the position of the mounting shaft; and the first fixed tool holder and the second fixed tool holder together form a crushing area located between the first mounting area and the second mounting area.

[0006] At least two blade bodies are disposed within the crushing zone. Each blade body is made of tungsten steel and undergoes a heat treatment process. Both ends of each blade body are respectively embedded in the first fixed blade holder and the second fixed blade holder. The inclination direction of the blade body is set at an angle to the mounting shaft so that the material to be sheared is crushed by the blade body when it enters the crushing zone.

[0007] In the above-described crushing tool structure, the angle between the tilt direction of each tool body and the centerline of the mounting shaft ranges from 4° to 7°.

[0008] In the above-described crushing tool structure, the inclination directions of any two tool bodies are set at an included angle.

[0009] In the above-mentioned crushing tool structure, the first fixed tool holder is provided with a first mounting groove, and the second fixed tool holder is provided with a second mounting groove that is offset from the first mounting groove. The two ends of the tool body are respectively embedded into the first mounting groove and the second mounting groove.

[0010] In the above-described crushing tool structure, both the first mounting area and the second mounting area are provided with mounting portions and clearance portions. The mounting portions can mate with the inner ring of the bearing. The clearance portions and the mounting portions are arranged in a stepped manner to prevent the first or second fixed tool holder from interfering with the external environment.

[0011] In the above-mentioned crushing tool structure, a tool retraction groove is also provided at the stepped portion of the mounting part and the clearance part. The tool retraction groove is used to provide space for the machining and manufacturing of the tool and the installation of the bearing.

[0012] In the above-described crushing tool structure, a connecting portion is also formed in the first mounting area. The connecting portion and the mounting portion are arranged in a stepped manner and are used to connect the output end of the driving component.

[0013] In the above-mentioned crushing tool structure, the mounting shaft has a blind hole along its axial direction, and the mounting shaft located in the crushing zone also has a number of lubrication holes, which are connected to the blind hole and are used to guide the lubricant to the tool body.

[0014] In the above-mentioned crushing tool structure, both the first fixed tool holder and the second fixed tool holder are provided with weight reduction holes.

[0015] The technical solution adopted by this utility model to solve its technical problem is to also propose a crusher, including one of the above-mentioned crushing blade structures.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) The present invention provides a crushing blade structure and a crusher. The blade body is made of tungsten steel and is heat-treated and then embedded in the blade holder. This not only effectively avoids the thermal deformation of the blade caused by welding, but also avoids the corrosion and oxidation of the material caused by the weld, reduces the welding process, and greatly enhances its hardness and wear resistance. At the same time, the optimized cutting angle design further improves the crushing efficiency. The tilting design helps to bring the plastic film bag into the crushing area and avoids the risk of bag blockage.

[0018] (2) By providing continuous and uniform lubrication to the tool body, the friction between the tool and the material to be crushed can be significantly reduced, heat accumulation can be avoided and the wear rate of the tool can be reduced, which helps to extend the service life of the tool.

[0019] (3) By using the angle design of the tilt direction of any two blade bodies, a more uniform and multi-directional force is applied to the material, which helps to achieve a more fine and uniform crushing effect and reduces the possibility of large particle residue. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the installation structure when the present application is used in a crusher;

[0021] Figure 2 This is a schematic diagram of the overall structure of the crushing blade;

[0022] Figure 3 yes Figure 2 The left view;

[0023] Figure 4 This is a top view of the shredder blade.

[0024] In the diagram, 1 is the mounting shaft; 10 is the first mounting area; 100 is the connecting part; 11 is the second mounting area; 12 is the crushing area; 130 is the mounting part; 131 is the clearance part; 132 is the tool relief groove; 14 is the blind hole; and 15 is the lubrication hole.

[0025] 2. First fixed tool holder; 20. First mounting slot;

[0026] 3. Second fixed tool holder; 30. Second mounting slot; 31. Weight reduction hole;

[0027] 4. Tool body. Detailed Implementation

[0028] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0029] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0030] like Figure 1 As shown, this solution mainly describes a crushing blade structure used in a crusher. However, this crushing blade structure is not limited to crushers and can also be applied to other places, such as blenders in daily life.

[0031] like Figures 1 to 4As shown, a crushing tool structure includes: a mounting shaft 1, on which a first fixed tool holder 2 and a second fixed tool holder 3 are mounted; the two ends of the mounting shaft 1 can be divided into a first mounting area 10 and a second mounting area 11 by the first fixed tool holder 2 and the second fixed tool holder 3; the first mounting area 10 is used to connect the output end of the drive component, and the second mounting area 11 is used to connect the position of the fixed mounting shaft 1; and the first fixed tool holder 2 and the second fixed tool holder 3 together form a crushing area 12 located between the first mounting area 10 and the second mounting area 11; at least two tool bodies 4 are disposed in the crushing area 12, each tool body 4 is made of tungsten steel and undergoes a heat treatment process, and the two ends of each tool body 4 are respectively embedded in the first fixed tool holder 2 and the second fixed tool holder 3; the inclination direction of the tool body is set at an angle to the mounting shaft 1, so that when the object to be sheared enters the crushing area 12, it is crushed by the tool body.

[0032] Specifically, such as Figures 1 to 4 As shown, in this embodiment, the first mounting area 10 of the mounting shaft 1 is connected to the output end of the drive component, which is typically a motor. When the motor starts, it drives the entire mounting shaft 1 (including the tool holder and the tool body) to rotate. The design of the first fixed tool holder 2 and the second fixed tool holder 3 not only divides the mounting shaft 1 into two areas (the first mounting area 10 and the second mounting area 11), but also serves as a support structure, ensuring the stability and safety of the tool body 4, preventing tool loosening or damage due to vibration or impact, and improving the overall reliability and service life of the equipment. Preferably, these tool holders can be integrally die-cast with the mounting shaft 1, or they can be firmly fixed to the mounting shaft 1 using fasteners such as screws or bolts. Each cutter body 4 is embedded at both ends in the first fixed cutter holder 2 and the second fixed cutter holder 3, forming a stable cutting structure. The cutter body is set at a certain angle to the mounting shaft 1, allowing the cutter to shear, tear, and pulverize the material entering the crushing zone 12 at a specific angle when the mounting shaft 1 rotates. Because the cutter uses high-strength tungsten steel and undergoes heat treatment, it possesses extremely high hardness and wear resistance. The tungsten steel blade, as a hard alloy, is only used at the cutting edge, maintaining high cutting efficiency even after prolonged operation, reducing replacement and maintenance frequency, and lowering maintenance costs. Furthermore, the inclined angle of the cutter body 4 not only improves cutting efficiency but also increases the opportunity for material to contact the cutter, helping to bring plastic film bags into the crushing zone 12 for a more thorough pulverization effect.

[0033] Preferably, the installed blade (i.e. the blade body) forms a certain angle with the blade holder spindle (i.e. the mounting shaft 1), and the angle between the tilt direction of each blade body 4 and the axis of the mounting shaft 1 is in the range of 4°-7°, with an actual design of 6 degrees. Without adding additional power input, the oblique cutting force and tearing force generated when the blade rotates are used to enhance the crushing effect. Compared with the traditional straight blade design, this structure can crush materials more effectively and reduce crushing time.

[0034] More preferably, the number of blade bodies in this embodiment is not limited to two. When multiple blade bodies are set, the tilting directions of any two blade bodies 4 are set at an angle. This design can create a multi-directional and multi-layer cutting network in the crushing zone 12 (i.e., blade bodies with different tilting angles can be distributed in 360 degrees), ensuring that the material is subjected to uniform and sufficient force in all directions. This not only improves the effectiveness of a single cut, but also greatly increases the possibility of the material being completely crushed, thereby improving the overall crushing efficiency.

[0035] The first fixed tool holder 2 has a first mounting groove 20, and the second fixed tool holder 3 has a second mounting groove 30 that is offset from the first mounting groove 20. The two ends of the tool body are respectively embedded into the first mounting groove 20 and the second mounting groove 30.

[0036] Furthermore, such as Figures 2 to 4 As shown, the mounting slots corresponding to the two fixed tool holders in this embodiment are not aligned. By embedding the two ends of the tool body 4 into the staggered first mounting slot 20 and second mounting slot 30 respectively, the stability of the tool during high-speed rotation can be significantly improved, reducing the risk of tool loosening or damage due to vibration or impact, and improving the safety of the equipment. The staggered mounting slots allow the tool to more effectively cover the entire crushing zone 12 during rotation, avoiding the occurrence of crushing dead corners. In addition, this embedding method also effectively avoids tool thermal deformation caused by welding, and can also avoid material corrosion and oxidation caused by welds. While reducing a welding process, it also effectively improves work efficiency.

[0037] Both the first mounting area 10 and the second mounting area 11 have a mounting part 130 and a clearance part 131. The mounting part 130 can mate with the inner ring of the bearing. The clearance part 131 and the mounting part 130 are arranged in a stepped manner to prevent the first fixed tool holder 2 or the second fixed tool holder 3 from interfering with the external position.

[0038] Furthermore, such as Figures 1 to 4As shown, this embodiment provides a mounting part 130 and a clearance part 131 in both mounting areas. The mounting part 130 fixes the position of the mounting shaft 1. The stepped design of the mounting part 130 and the clearance part 131 allows for a tight fit between the mounting part 130 and the inner ring of the bearing, preventing unnecessary axial displacement of the bearing. At the same time, the clearance part 131 is designed to prevent the fixed tool holder from interfering with the position of other components during installation, optimizing the internal space layout and making the entire device more compact. This helps save space and reduce the overall size, while also ensuring that the mounting shaft 1 and its attached tool can work efficiently and stably. This design reduces the potential risk of failure due to vibration or impact, and improves the safety and reliability of the equipment.

[0039] More preferably, such as Figure 2 and Figure 3 As shown, the mounting section 130 and the clearance section 131 are also provided with a tool retraction groove 132. The design of the tool retraction groove 132 greatly facilitates the tool feeding and retraction operations during the machining process, and also provides additional space for bearing installation, making the assembly process smoother, reducing assembly difficulty, and improving work efficiency; it helps to ensure the accuracy of bearing installation, thereby ensuring the stability and reliability of the entire equipment.

[0040] More preferably, such as Figure 2 and Figure 3 As shown, in this embodiment, a connecting part 100 is also formed in the first installation area 10. The connecting part 100 and the installation part 130 are also arranged in a stepped shape, which helps to improve the accuracy and stability of the connection between the connecting part 100 and the motor output end (a coupling can be used for connection), making the operation more convenient and quick, reducing the assembly difficulty, and ensuring continuous and stable crushing operation under large torque.

[0041] The mounting shaft 1 has a blind hole 14 along its axial direction. The mounting shaft 1 located in the crushing zone 12 also has several lubrication holes 15. The lubrication holes 15 are connected to the blind hole 14 and are used to guide the lubricant to the tool body 4.

[0042] More preferably, such as Figures 1 to 4As shown, in this embodiment, the open end of the blind hole 14 is located on the side of the mounting shaft 1 away from the motor to be installed, so that an external lubrication pipe (not shown in the figure) can extend into the blind hole 14. As the mounting shaft 1 drives the fixed tool holder and the tool body 4 to rotate, the lubricant (e.g., lubricating oil) in the blind hole 14 can be distributed to the tool body 4 and other key moving parts through the lubrication hole 15 under centrifugal force, ensuring that these parts maintain good lubrication throughout the entire working cycle, thereby extending the tool's service life and improving working efficiency. It should be noted that coolant can also be introduced into the blind hole 14 and the lubrication hole 15 through the lubrication pipe to remove the heat generated by high-speed operation, effectively reducing the working temperature of the tool body 4 and preventing material deformation or damage caused by overheating.

[0043] More preferably, such as Figure 2 and Figure 3 As shown, in this embodiment, weight-reducing holes 31 are also provided on both the first fixed tool holder 2 and the second fixed tool holder 3. During long-term operation of the equipment, the weight-reducing holes 31 help to reduce the inertial force caused by high-speed rotation, thereby reducing the wear rate and the possibility of failure. At the same time, the lightweight design also reduces unnecessary vibration and noise, providing a smoother operating experience.

[0044] It should be noted that in this invention, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly specified. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0045] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0046] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A crushing blade structure, characterized in that, include: The mounting shaft is equipped with a first fixed blade holder and a second fixed blade holder. The two ends of the mounting shaft can be divided into a first mounting area and a second mounting area by the first fixed blade holder and the second fixed blade holder. The first mounting area is used to connect the output end of the drive component, and the second mounting area is used to connect and fix the position of the mounting shaft. The first fixed blade holder and the second fixed blade holder together form a crushing area located between the first mounting area and the second mounting area. At least two blade bodies are disposed within the crushing zone. Each blade body is made of tungsten steel and undergoes a heat treatment process. Both ends of each blade body are respectively embedded in the first fixed blade holder and the second fixed blade holder. The inclination direction of the blade body is set at an angle to the mounting shaft so that the material to be sheared is crushed by the blade body when it enters the crushing zone.

2. The crushing tool structure according to claim 1, characterized in that, The angle between the tilt direction of each tool body and the centerline of the mounting shaft ranges from 4° to 7°.

3. The crushing tool structure according to claim 1, characterized in that, The tilting directions of any two of the tool bodies are set at an angle.

4. The crushing tool structure according to claim 2, characterized in that, The first fixed tool holder has a first mounting groove, and the second fixed tool holder has a second mounting groove that is offset from the first mounting groove. The two ends of the tool body are respectively embedded into the first mounting groove and the second mounting groove.

5. The crushing tool structure according to claim 1, characterized in that, Both the first and second mounting areas have mounting portions and clearance portions. The mounting portions can mate with the inner ring of the bearing. The clearance portions and the mounting portions are arranged in a stepped manner to prevent the first or second fixed tool holder from interfering with the external environment.

6. The crushing tool structure according to claim 5, characterized in that, The mounting section and the clearance section are also provided with a tool relief groove, which provides space for the machining of cutting tools and the installation of bearings.

7. A crushing tool structure according to claim 5, characterized in that, A connecting portion is also formed in the first mounting area. The connecting portion and the mounting portion are arranged in a stepped manner and are used to connect the output end of the driving component.

8. The crushing tool structure according to claim 1, characterized in that, The mounting shaft has blind holes along its axial direction, and the mounting shaft located in the crushing zone also has several lubrication holes connected to the blind holes, which are used to guide lubricant to the tool body.

9. A crushing tool structure according to claim 1, characterized in that, Both the first fixed tool holder and the second fixed tool holder have weight reduction holes.

10. A pulverizer, characterized in that, The invention includes a crushing tool structure as described in any one of claims 1-9.

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