A wood chipper knife roll assembly

Abstract

The utility model relates to timber chipper technical field, concretely is a kind of timber chipper knife roll subassembly, it include: rotating shaft;The outer wall of rotating shaft is equipped with mounting groove, the surface of mounting groove is equipped with thread groove;Cutting structure is installed on the rotating shaft, and the cutting structure includes cutting blade, the cutting blade is movably installed in the outside of mounting groove, the outer wall of cutting blade is equipped with circular sink groove, high-strength bolt is inserted in the inside of circular sink groove.The utility model is equipped with mounting groove on the surface of rotating shaft, and cutting blade of "in" character configuration is covered in the outside of mounting groove, rotating shaft can be cut timber by cutting blade when rotating, and the opening direction of cutting blade and mounting groove is opposite with the rotation direction of rotating shaft, can effectively avoid the phenomenon that wood chip is clamped on device, improves the use experience of device.

Description

Technical Field

[0001] This utility model relates to the field of wood chipper technology, specifically to a wood chipper cutter roller assembly. Background Technology

[0002] Drum chippers are a common type of wood processing equipment. They typically use the flying cutters on the fly cutter roller and the bottom cutters fixed inside the machine body to cut wood into chips.

[0003] In response, Chinese patent application number CN202221566232.X discloses a flying knife roller for a wood chipper, comprising a roller body and a plurality of flying knives. The roller body has a plurality of T-slots, one end of which is closed and the other end is open. The flying knives are correspondingly engaged in the T-slots. The flying knives can be easily inserted or removed from the open end of the T-slot. By setting a locking structure at one end of the open end of the T-slot, the flying knives can be locked in the T-slots. The disassembly and assembly of the flying knives are very convenient. The side wall of the T-slot is provided with heat dissipation holes. The gas flow driven by the centrifugal blades at one end of the roller body can improve the heat dissipation effect of the flying knives.

[0004] The device provides a location for the flying knife by creating a T-slot on the surface of the cutter roller body. However, the T-slot is oriented in the same direction as the rotation of the cutter roller body. When the cutter roller body drives the flying knife to cut wood, wood chips are easily stuck in the gap between the T-slot and the flying knife, affecting the cutting effect and causing inconvenience in use.

[0005] Therefore, in order to solve the above problems, a wood chipper cutter roller assembly is proposed. Utility Model Content

[0006] The purpose of this utility model is to provide a wood chipper cutter roller assembly to solve the problem mentioned in the background art where the prior art device provides a T-slot on the surface of the cutter roller body to provide a position for the installation of the flying knife. However, the orientation of the T-slot is the same as the rotation direction of the cutter roller body. When the cutter roller body drives the flying knife to cut wood, wood chips are easily stuck in the gap between the T-slot and the flying knife, affecting the cutting effect of the wood and causing inconvenience in use.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a wood chipper cutter roller assembly, comprising: a rotating shaft; The outer wall of the rotating shaft is provided with a mounting groove, and the surface of the mounting groove is provided with a threaded groove. A cutting structure is mounted on the rotating shaft. The cutting structure includes a cutting blade. The cutting blade is movably mounted on the outside of the mounting groove. A circular groove is formed on the outer wall of the cutting blade. A high-strength bolt is inserted into the inner side of the circular groove.

[0008] Preferably, the outer wall shape of said mounting groove is adapted to the inner wall shape of the cutting insert.

[0009] Preferably, said thread groove is aligned with the circular countersunk groove, and the interiors of said thread groove and said circular countersunk groove are in communication.

[0010] Preferably, said cutting insert is of an inverted V-shaped structure, and the inner wall of said cutting insert fits against the outer wall of the mounting groove.

[0011] Preferably, said high-strength bolt penetrates the cutting insert via the circular countersunk groove, and the threaded end meshes with the inner wall of the thread groove.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: the present utility model is provided with a mounting groove opened on the surface of a rotating shaft, and an inverted V-shaped cutting insert covers the outer side of the mounting groove. When the rotating shaft rotates, wood can be cut by the cutting insert, and the opening directions of the cutting insert and the mounting groove are opposite to the rotation direction of the rotating shaft, which can effectively avoid sawdust from being stuck on the device and improve the use experience of the device.

[0013] The present utility model is provided with a cutting structure, the cutting insert is sleeved on the outer side of the mounting groove, and the position of the cutting insert on the outer side of the mounting groove can be adjusted by moving the cutting insert back and forth, so that the circular countersunk groove is aligned with the thread groove. Then, the threaded end of the high-strength bolt is inserted into the circular countersunk groove, and the high-strength bolt is rotated to screw the threaded end of the high-strength bolt into the thread groove, and the upper end of the high-strength bolt can abut against the inner wall of the circular countersunk groove, so that the cutting insert can be fixed on the surface of the rotating shaft. The cutting insert is of an inverted V-shaped structure; when the rotating shaft rotates, wood can be cut by the cutting insert, and after the cutting insert is installed, the opening directions of the cutting insert and the mounting groove are opposite to the rotation direction of the rotating shaft, which can effectively avoid sawdust from being stuck on the device and improve the use experience of the device. Description of Drawings

[0014] Figure 1 is a front structural schematic view of the present utility model; Figure 2 is an exploded structural schematic view of the present utility model; Figure 3 is a side structural schematic view of the cutting insert and the circular countersunk groove of the present utility model; Figure 4 is a front sectional structural schematic view of the present utility model.

[0015] In the figures: 1. Rotating shaft; 11. Mounting groove; 12. Thread groove; 2. Cutting structure; 21. Cutting insert; 22. Circular countersunk groove; 23. High-strength bolt. Detailed Description of Embodiments

[0016] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by a person of ordinary skill in the art without creative effort fall within the scope of protection of the present utility model.

[0017] Please refer to Figures 1-4 , an embodiment of a knife roll assembly for a wood chipper provided by the present utility model: The rotating shaft 1 used in the present application is a product directly available on the market, its principle and connection method are both prior art well known to those skilled in the art, so they will not be repeated herein.

[0018] A knife roll assembly for a wood chipper, comprising: a rotating shaft 1; An installation groove 11 is provided on an outer wall of the rotating shaft 1, and a threaded groove 12 is provided on a surface of the installation groove 11; A cutting structure 2 is installed on the rotating shaft 1, the cutting structure 2 includes a cutting blade 21, the cutting blade 21 is movably installed on an outer side of the installation groove 11, a circular counterbore 22 is provided on an outer wall of the cutting blade 21, a high-strength bolt 23 is inserted into an inner side of the circular counterbore 22. By sleeving the cutting blade 21 on the outer side of the installation groove 11 and moving the cutting blade 21 back and forth, the position of the cutting blade 21 on the outer side of the installation groove 11 can be adjusted, so that the circular counterbore 22 is aligned with the threaded groove 12. Then insert the threaded end of the high-strength bolt 23 into the circular counterbore 22 and rotate the high-strength bolt 23, so that the threaded end of the high-strength bolt 23 is screwed into the threaded groove 12, and the upper end of the high-strength bolt 23 can abut against the inner wall of the circular counterbore 22, thereby fixing the cutting blade 21 on the surface of the rotating shaft 1. By providing the installation groove 11 on the surface of the rotating shaft 1 and covering the outer side of the installation groove 11 with the cutting blade 21 of a Chinese character '入'-shaped structure, when the rotating shaft 1 rotates, wood can be cut by the cutting blade 21. In addition, the opening directions of the cutting blade 21 and the installation groove 11 are opposite to the rotation direction of the rotating shaft 1, which can effectively avoid the phenomenon of wood chips being jammed on the device and improve the use experience of the device.

[0019] Further, the shape of the outer wall of the installation groove 11 is adapted to the shape of the inner wall of the cutting blade 21, so that the cutting blade 21 can be installed on the outer side of the installation groove 11, which provides a position for the installation of the cutting blade 21 on the rotating shaft 1, and when the rotating shaft 1 rotates, wood can be cut by the cutting blade 21.

[0020] Further, the threaded groove 12 is aligned with the circular counterbore 22 and communicated internally, and the high-strength bolt 23 can penetrate through the circular counterbore 22 and be screwed into the threaded groove 12, which provides connection and fixation for the installation of the cutting blade 21 on the rotating shaft 1.

[0021] Further, the cutting insert 21 is in an inverted V-shaped configuration, the inner wall of the cutting insert 21 fits the outer wall of the installation groove 11. When the rotating shaft 1 rotates, wood can be cut through the middle part of the cutting insert 21. After the cutting insert 21 is installed, the opening direction of the cutting insert 21 and the installation groove 11 is opposite to the rotation direction of the rotating shaft 1, which can effectively avoid the phenomenon of wood chips jamming on the device and improve the use experience of the device.

[0022] Further, the high-strength bolt 23 penetrates the cutting insert 21 through the circular counterbore 22, and its threaded end meshes with the inner wall of the threaded groove 12. The high-strength bolt 23 cooperates with the circular counterbore 22 and the threaded groove 12 to provide connection and fixation for the installation of the cutting insert 21 on the rotating shaft 1, which can ensure the convenience of disassembly and assembly of the cutting insert 21.

[0023] Working principle: During installation, sleeve the cutting insert 21 outside the installation groove 11, move the cutting insert 21 back and forth to adjust the position of the cutting insert 21 outside the installation groove 11, so that the circular counterbore 22 is aligned with the threaded groove 12. Then insert the threaded end of the high-strength bolt 23 into the circular counterbore 22, rotate the high-strength bolt 23 to screw the threaded end of the high-strength bolt 23 into the threaded groove 12, and the upper end of the high-strength bolt 23 can abut against the inner wall of the circular counterbore 22, thus the cutting insert 21 can be fixed on the surface of the rotating shaft 1; The cutting insert 21 is in an inverted V-shaped configuration. When the rotating shaft 1 rotates, wood can be cut by the cutting insert 21. After the cutting insert 21 is installed, the opening direction of the cutting insert 21 and the installation groove 11 is opposite to the rotation direction of the rotating shaft 1, which can effectively avoid the phenomenon of wood chips jamming on the device and improve the use experience of the device.

[0024] The above description is only the preferred embodiments of the present utility model, and does not impose any form of limitation on the present utility model. Any person skilled in the art can smoothly implement the present utility model according to the contents shown in the drawings of the specification and the above description; however, any person skilled in the art who makes minor alterations, modifications and equivalent evolutions by using the technical content disclosed above without departing from the scope of the technical solution of the present utility model shall be equivalent embodiments of the present utility model; meanwhile, any equivalent alterations, modifications and evolutions made to the above embodiments according to the essential technology of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A wood chipper cutter roller assembly, comprising: Rotation shaft (1); characterized in that: an installation slot (11) is provided on the outer wall of the rotation shaft (1), and a thread groove (12) is provided on a surface of the installation slot (11); a cutting structure (2) is mounted on the rotation shaft (1), the cutting structure (2) comprises a cutting insert (21), the cutting insert (21) is movably mounted on an outer side of the installation slot (11), a circular countersunk groove (22) is provided on an outer wall of the cutting insert (21), and a high-strength bolt (23) is inserted inside the circular countersunk groove (22).

2. The wood chipper roller assembly according to claim 1, characterized in that: an outer wall shape of the installation slot (11) is adapted to an inner wall shape of the cutting insert (21).

3. The wood chipper cutter roller assembly according to claim 1, characterized in that: the thread groove (12) is aligned with the circular countersunk groove (22), and interiors thereof are communicated with each other.

4. The wood chipper roller assembly according to claim 1, characterized in that: the cutting insert (21) is in a herringbone configuration, and an inner wall of the cutting insert (21) is attached to an outer wall of the installation slot (11).

5. The wood chipper cutter roller assembly according to claim 1, characterized in that: the high-strength bolt (23) penetrates the cutting insert (21) via the circular countersunk groove (22), and a threaded end of the high-strength bolt is engaged with an inner wall of the thread groove (12).

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