TW202239474A - Chipping device of wood chipper having better structural strength and improving replacement convenience - Google Patents

Abstract

A chipping device of a wood chipper comprises a knife holder having the center axis extended along a horizontal direction and a knife set detachably disposed on the knife holder. The knife holder defines a plurality of mounting slots extended along the horizontal direction. The at least one knife set includes a plurality of blades disposed in the mounting slots. Each blade includes a knife body portion, and a plurality of sawing edge portions disposed on one side of the knife body portion and arranged along the horizontal direction. The knife holder has a one-piece design and better structural strength, and the blades may be directly detached from the knife holder without having to detach the knife holder to improve the replacement convenience.

Description

Crushing device of wood chipper

The invention relates to a cutting tool, in particular to a crushing device of a wood chipper.

Referring to FIG. 1 and FIG. 2 , the wood chipper 1 is a recovery tool for cutting and crushing tree branches protruding into the fuselage through the rotation of the cutter 11 . Generally, the cutter 11 of the wood chipper 1 includes a plurality of coaxially assembled cutter heads 111 , and a plurality of saw wheels 112 arranged alternately with the cutter heads 111 and sandwiched and fixed by the cutter heads 111 . Each cutter head 111 forms two grooves, and the grooves cooperate with each other to define two opposite cutting areas for the saw wheels 112 to be partially exposed. During the rotation of the saw wheel 112, tree branches are cut and shredded by the saw wheel 112 exposed from the cutting areas.

However, when any saw wheel 112 is damaged, the cutter head 111 clamping the saw wheel 112 must be disassembled before replacement. The disc 111 is disassembled, which increases the difficulty of replacement and reduces the convenience. Finally, the cutter discs 111 are of combined structure, so the structural strength is not good and there is still room for improvement.

Therefore, the object of the present invention is to provide a crushing device that is easy to replace.

Therefore, the crushing device of the wood chipper of the present invention includes a knife seat whose central axis extends along a horizontal direction, and at least one knife set detachably arranged on the knife seat. The knife seat defines a plurality of mounting grooves extending along the horizontal direction and arranged at intervals in a ring shape along its central axis. The at least one cutter set includes a plurality of blades arranged in the installation slots. Each blade includes a blade body, and a plurality of saw blades disposed on one side of the blade body and arranged along the horizontal direction.

The effect of the present invention is that the knife seat adopts an integrated design without additional assembly, and has better structural strength, and the blades can be directly disassembled from the knife seat without dismantling the knife seat. Ease of replacement.

Referring to Fig. 3 and Fig. 4, it is an embodiment of the crushing device 3 of the wood chipper 2 of the present invention, the crushing device 3 includes a knife seat 31 whose central axis extends along a horizontal direction A, and a detachably arranged Tool set 32 on tool seat 31. The knife seat 31 includes a pivot 311 extending along the horizontal direction A, and a seat body 312 penetrated by the pivot 311 and fixed on the pivot 311 . The seat body 312 is recessed to define two mounting grooves 313 that extend along the horizontal direction A and are arranged at intervals in a ring along the central axis of the seat body 312 . The crushing device 3 is arranged in a wood chipper 2 as shown in Figure 4, and is pivotally installed in the wood chipper 2 through the pivot 311. The appearance and configuration method are for reference only, in fact the installation is not limited to this kind of chipper 2.

Referring to FIG. 3 , FIG. 5 , and FIG. 6 , the cutter set 32 includes two blades 321 respectively fixed in the mounting slots 313 by screw locking. Each blade 321 includes a blade portion 322 extending along the horizontal direction A, a plurality of saw blade portions 323 integrally formed on one side of the blade portion 322 and arranged continuously along the horizontal direction A, and a plurality of saw blade portions 323 integrally formed on the blade portion 322 on the other side and along the horizontal direction A, the replacement blade portions 324 are continuously arranged. The saw blades 323 are spaced apart from each other along the horizontal direction A to define a plurality of saw grooves 325 . The saw blades 323 of each blade 321 and the saw blades 323 of the other blade 321 are staggered as shown in FIG. A saw groove 325 corresponding to the other blade 321 in the direction B, that is, each saw edge portion 323 of each blade 321 is offset from the saw edge portion 323 of the other blade 321 . The replacement blade portions 324 and the saw blade portions 323 on the same blade 321 are aligned with each other along the circumferential direction B of the knife seat 31, so that each replacement blade portion 324 is aligned with the other saw blade portion 323, that is to say, The replacement blades 324 on each blade 321 are also alternately arranged with the replacement blades 324 or the saw blades 323 on the other blade 321 .

Through the staggered arrangement of the saw blades 323 of the blades 321, a continuous cutting and crushing range can be formed when cutting and crushing tree branches, and the cutting and crushing effects can be improved. Each blade 321 can be directly removed from the knife seat 31 when damaged, so that the knife seat 31 does not need to be disassembled, and the effect of quick replacement is achieved. Besides the saw blades 323, the blade 321 also has a spare The replacement blades 324 can be replaced by the user after removing the blade 321, so that the replacement blades 324 can be used for operations, and the replacement blades 324 are similar to the blade 321 of the other blade 321. The saw blades 323 or the alternate blades 324 are staggered to maintain a good cutting and crushing effect. In addition, the knife seat 31 adopts a one-piece design, which has better structural strength.

Referring to Fig. 7, Fig. 8, and Fig. 9, the saw blades 323 or the replacement blades 324 can be designed with sharp teeth or flat teeth, and the saw blades 323 and the replacement blades of different shapes 324 can also be matched with each other, for example, as shown in Figure 7, one of the blades 321 selects the sharp-toothed saw blade portion 323 for operation, and the other blade 321 selects the flat-toothed replacement blade portion 324 for operation. 323 and these replacement blade portions 324 can be arranged in a staggered manner, and even each blade 321 can only have a single blade replacement blade portion 324 as shown in Figure 9, so that each blade 321 can have more Various blade bodies are available for selection, and more kinds of blade body combinations can be produced to improve the versatility.

It should be noted that more than two mounting grooves 313 can also be formed on the seat body 312, and can correspond to two or more cutter sets 32, or the cutter sets 32 can also have more than two blades 321 ( These blades 321 still adopt the design that these saw blades 323 are arranged in a staggered manner), which improves expandability and variability.

To sum up, the present invention can improve cutting and crushing efficiency through the staggered arrangement of the saw blades 323, the blades 321 are easy to replace, and each blade 321 can be reversely assembled after detachment to improve Working with the replacement blades 324, combined with the different configuration changes of the saw blades 323 and the replacement blades 324, various types of crushing effects can be produced, and the integrated design of the knife holder 31 can also increase Integral structural strength, so can really reach the purpose of the present invention.

But what is described above is only an embodiment of the present invention, and should not limit the scope of the present invention. All simple equivalent changes and modifications made according to the patent scope of the present invention and the content of the patent specification are still within the scope of the present invention. Within the scope covered by the patent of the present invention.

2: wood chipper 3: Crushing device 31: Knife seat 311: pivot 312: seat body 313: Mounting groove 32: Tool set 321: blade 322: Blade Department 323: saw blade 324: replacement blade 325: saw groove A: Horizontal direction B: Circumferential

Other features and effects of the present invention will be clearly presented in the implementation manner with reference to the drawings, wherein: Figure 1 is a side sectional view illustrating a wood chipper equipped with known knives; Fig. 2 is a three-dimensional view illustrating the three-dimensional appearance of the cutter in Fig. 1; Fig. 3 is a perspective view illustrating an embodiment of the crushing device of the wood chipper of the present invention; Fig. 4 is a side sectional view, illustrates the aspect that this embodiment is arranged on the chipper; Figure 5 is a perspective view illustrating a blade in this embodiment; Figure 6 is a top view illustrating a tool set in this embodiment; and 7 to 9 are perspective views, illustrating other aspects of the blade.

3: Crushing device

31: Knife seat

311: pivot

312: seat body

313: Mounting groove

32: Tool set

321: blade

322: Blade Department

323: saw blade

A: Horizontal direction

B: Circumferential

Claims (8)

A crushing device of a wood chipper, comprising: A knife seat, the central axis of which extends along a horizontal direction, the knife seat defines a plurality of mounting grooves extending along the horizontal direction and arranged at intervals in a ring along its central axis; and At least one knife set is detachably arranged on the knife seat, and includes a plurality of blades arranged in the installation grooves, each blade includes a blade part, and a plurality of blades are arranged on one side of the blade part along the horizontal Saw blades arranged in the same direction. The crushing device of a wood chipper according to claim 1, wherein the saw blades of each blade are arranged in a staggered manner with the saw blades of the other blade. The pulverizing device of the wood chipper according to claim 1, wherein the saw blades of each blade are spaced apart from each other along the horizontal direction to define a plurality of saw grooves, and one saw blade of each blade is at the edge of the knife seat The circumferential direction corresponds to a saw groove of the other blade. The pulverizing device of the wood chipper according to claim 1, wherein the saw blades of the blades are sharp-toothed or flat-toothed. The crushing device of the wood chipper according to claim 1, wherein each blade of the at least one knife set further includes a replacement blade portion disposed on the other side of the blade body and extending along the horizontal direction. The crushing device of the wood chipper according to claim 1, wherein each blade of the at least one knife set further includes a plurality of replacement blades arranged on the other side of the blade body and arranged along the horizontal direction, and the replacement blades The blade portion and the saw blade portions are aligned with each other along the circumferential direction of the knife holder, so that each blade portion corresponds to another replacement blade portion. According to claim 6, the crushing device of the wood chipper, wherein the replacement blades of the blades are tine-shaped or flat-toothed. The crushing device of the wood chipper according to claim 1, wherein the knife seat includes a pivot extending along the horizontal direction, and a pivot is penetrated by the pivot and fixed on the pivot, and defines the Mount the seat of the groove.

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