Branch crusher cutter head and branch crusher

Abstract

The utility model discloses a chipper cutterhead and a chipper, the chipper cutterhead comprises a cutterhead (1), the edge of the cutterhead (1) is provided with a cutting opening (101), a first mounting surface (102) of the cutterhead (1) is provided with a cutting knife (2), and the cutting knife (2) is located on one side of the cutting opening (101); a chip guide piece (3) is arranged on a second mounting surface (103), opposite to the first mounting surface (102), of the cutter head (1), the chip guide piece (3) is of a spiral structure, and one end of the chip guide piece (3) is connected with one side, provided with the cutting knife (2), of the cutting opening (101); when the cutter head (1) rotates, wood chips cut from the cutting opening (101) can be discharged out of the cutter head (1) along the spiral line of the chip guiding piece (3). The cutterhead of the branch crusher and the cutterhead of the branch crusher can discharge wood chips out of the cutterhead in time, the chip removal effect is good, and the phenomenon of blockage is avoided.

Description

Technical Field

[0001] This utility model relates to the field of garden tool technology, and discloses a cutter head structure, particularly a cutter head for a wood chipper and a wood chipper having the cutter head. Background Technology

[0002] A wood chipper is a widely used piece of machinery in garden maintenance, primarily used to shred pruned branches, leaves, and weeds, turning them into organic fertilizer or mulch suitable for gardening. The widespread use of this equipment helps reduce green waste, improve resource utilization, and decrease the use of chemical fertilizers, thus having a positive impact on the ecological environment.

[0003] In existing technologies, the cutter head structure of a wood chipper directly affects the efficiency and effectiveness of the shredding process. Current cutter heads typically only have blades and a mixing element; the blades are responsible for cutting branches, while the mixing element assists in agitating the debris. However, because cutting relies solely on the blades, the discharge of debris mainly depends on centrifugal force. When the cutter head rotates at high speed, debris easily accumulates inside, affecting subsequent shredding operations and even causing machine blockage, thus limiting the overall performance of the wood chipper. Therefore, optimizing the cutter head structure to improve shredding efficiency and effectively discharge debris is a pressing technical problem that needs to be solved in this field. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a wood chipper disc that can discharge wood chips in a timely manner, with good chip discharge effect and no clogging.

[0005] This utility model provides a wood chipper disc, including a cutting opening at the edge of the disc, a cutting blade on a first mounting surface of the disc located on one side of the cutting opening, and a chip guide on a second mounting surface opposite to the first mounting surface. The chip guide has a spiral structure, and one end of the chip guide is connected to the side of the cutting opening where the cutting blade is located. When the disc rotates, the wood chips cut from the cutting opening are discharged from the disc along the spiral line of the chip guide.

[0006] With the above structure, the chipper disc of this utility model has the following advantages compared with the prior art:

[0007] Because the second mounting surface of the paper shredder blade of this utility model is provided with a chip guide, which has a spiral structure, when the blade rotates, the wood chips cut off at the cutting opening will be discharged from the blade along the spiral line of the chip guide, resulting in a better chip discharge effect and preventing wood chips from clogging the blade.

[0008] As an improvement, one end of the chip guide is flush with the side wall of the cutting opening where the cutting blade is located; the end face of the chip guide is provided with a guide surface. With this structure, the wood chips cut from the cutting opening can be smoothly guided into the chip guide, resulting in better chip guiding effect.

[0009] As an improvement, the inner side of the chip guide extends towards the cutter head to form a fixing part, which is connected to the cutter head, forming an accommodating space between the cutter head and the chip guide; the chip guide is integrally formed with the cutter head, or the fixing part of the chip guide is detachably connected to the cutter head. With this structure, the chip guide structure is simple.

[0010] As an improvement, the end of the fixing part near the head of the chip guide is fixedly connected to the cutter head by a first fastener; the end of the fixing part near the tail of the chip guide is provided with a boss, and the boss is fixedly connected to the cutter head by a second fastener. With this structure, the chip guide is simple in structure and easy to assemble.

[0011] As an improvement, the first mounting surface of the cutter head is provided with a mounting groove, and the cutting blade is installed in the mounting groove; the bottom of the mounting groove is provided with a connecting hole, and a first fastener passes through the cutting blade and the connecting hole and is fixedly connected to the end of the fixing part near the head of the chip guide. With this structure, the end of the fixing part can be fixed during the assembly of the cutting blade, which is simple in structure and easy to assemble.

[0012] As an improvement, the chip guide component has a chip guiding plane at its tail. This structure increases the chip discharge space at the tail of the chip guide component, making it easier to quickly discharge wood chips.

[0013] As an improvement, a notch is provided at the edge of the cutter disc, and one side of the notch extends downward to form a stirring protrusion that extends into the accommodating space. With this structure, when the cutter disc rotates, branches and leaves fall into the notch, and the stirring protrusion can stir the branches and leaves, which is more conducive to improving the crushing ratio of branches and leaves.

[0014] As an improvement, the cutter head has at least two cutting openings at its edge, and correspondingly, at least two chip guides are provided. These chip guides are connected by a connecting shaft, which is evenly distributed along the circumference of the connecting shaft and is coaxial with the cutter head. This structure, by increasing the number of cutting blades and chip guides, effectively improves the efficiency of shredding branches and leaves.

[0015] As an improvement, the connecting shaft has a mounting hole in its middle, and the cutter head has a through hole in its middle, with the mounting hole and the through hole aligned. This structure facilitates the assembly of the cutter head and improves structural reliability.

[0016] Another technical problem to be solved by this utility model is to provide a wood chipper whose cutter disc can discharge wood chips in a timely manner, with good chip discharge effect and no clogging.

[0017] This utility model provides a wood chipper, including a wood chipper disc with the structure described above.

[0018] With the above structure, the wood chipper of this invention has the following advantages compared with the prior art:

[0019] Because the second mounting surface of the shredder of this utility model is provided with a chip guide, which has a spiral structure, when the shredder rotates, the wood chips cut off at the cutting opening will be discharged from the shredder along the spiral line of the chip guide, resulting in a better chip discharge effect and preventing wood chips from clogging the shredder. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the paper shredder blade of this utility model.

[0021] Figure 2 This is a three-dimensional structural diagram of the paper shredder blade from another angle.

[0022] Figure 3 This is an exploded view of the paper shredder blade of this utility model.

[0023] Figure 4 This is a three-dimensional structural diagram of the chip guide component of the paper shredder blade of this utility model.

[0024] Figure 5 This is a three-dimensional structural diagram of the chip guide component of the paper shredder blade of this utility model from another angle.

[0025] As shown in the figure: 1. Cutter head, 101. Cutting opening, 102. First mounting surface, 103. Second mounting surface, 104. Mounting groove, 105. Connecting hole, 106. Through hole, 107. Notch, 108. Stirring protrusion, 2. Cutting blade, 3. Chip guide, 301. Guide surface, 302. Fixing part, 303. Accommodating space, 304. Boss, 305. Chip guide plane, 306. Connecting shaft, 307. Mounting hole. Detailed Implementation

[0026] To better understand this application, various aspects of this application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are merely illustrative of exemplary embodiments of this application and are not intended to limit the scope of this application in any way. Throughout the specification, the same reference numerals refer to the same elements.

[0027] In the accompanying drawings, the thickness, size, and shape of the objects have been slightly exaggerated for illustrative purposes. The drawings are for illustrative purposes only and are not drawn to scale.

[0028] It should also be understood that the terms “comprising,” “having,” “including,” and “containing”, when used in this specification, indicate the presence of the described features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof.

[0029] like Figures 1 to 5 As shown, this utility model provides a paper shredder blade disc, including a blade disc 1. The blade disc 1 has at least two cutting openings 101 at its edge; in this specific embodiment, there are two cutting openings 101. A cutting blade 2 is provided on a first mounting surface 102 of the blade disc 1; in this specific embodiment, the first mounting surface 102 is the upper surface of the blade disc 1. A mounting groove 104 is provided on the first mounting surface 102 of the blade disc 1, and the mounting groove 104 communicates with the cutting openings 101. The cutting blade 2 is installed in the mounting groove 104, and the cutting edge of the cutting blade 2 protrudes from the side wall of the mounting groove 104 and extends into the cutting opening 101.

[0030] The second mounting surface 103 of the cutter head 1 is provided with a chip guide 3. In this specific embodiment, the second mounting surface 103 is the lower surface of the cutter head 1. The chip guide 3 has a spiral structure, and one end of the chip guide 3 is connected to the side of the cutting opening 101 where the cutting blade 2 is located. One end of the chip guide 3 is flush with the side wall of the cutting opening 101 where the cutting blade 2 is located. The end face of the chip guide 3 is provided with a guide surface 301.

[0031] The inner side of the chip guide 3 extends toward the cutter head 1 to form a fixing part 302, which is connected to the cutter head 1, forming an accommodating space 303 between the cutter head 1 and the chip guide 3. The chip guide 3 can be integrally formed with the cutter head 1, or the fixing part 302 of the chip guide 3 can be detachably connected to the cutter head 1. In this specific embodiment, the fixing part 302 of the chip guide 3 is detachably connected to the cutter head 1.

[0032] The fixing part 302, near the head of the chip guide 3, is fixedly connected to the cutter head 1 via a first fastener (not shown). Specifically, the bottom of the mounting groove 104 has a connecting hole 105, and the first fastener passes through the cutting blade 2 and the connecting hole 105 before being fixedly connected to the fixing part 302 near the head of the chip guide 3. The fixing part 302, near the tail of the chip guide 3, has a boss 304, which is fixedly connected to the cutter head 1 via a second fastener. Specifically, the second fastener passes through the cutter head 1 and is fixedly connected to the boss 304. The tail of the chip guide 3 has a chip guiding plane 305, which is an extension of the spiral structure of the chip guide 3.

[0033] The number of chip guides 3 corresponds to the number of cutting openings 101. In this specific embodiment, two chip guides 3 are provided. The two chip guides 3 are connected by a connecting shaft 306, which is evenly arranged along the circumferential wall of the connecting shaft 306. The connecting shaft 306 is coaxial with the cutter head 1. A mounting hole 307 is provided in the middle of the connecting shaft 306, and a through hole 106 is provided in the middle of the cutter head 1. The mounting hole 307 and the through hole 106 are aligned. A distance is left between two adjacent chip guides 3, which is the cutting opening 101. The head of each chip guide 3 faces the tail of the previous chip guide 3.

[0034] The cutter head 1 is also provided with notches 107 at its edge. The number of notches 107 corresponds to the number of cutting openings 101. The notches 107 are located between two adjacent cutting openings 101. One side of the notch 107 extends downward to form a stirring protrusion 108, which extends into the receiving space 303.

[0035] When the shredder blade of this application rotates, the wood chips cut from the cutting opening 101 will be discharged from the blade 1 along the spiral line of the chip guide 3. During the rotation, branches and leaves will fall into the notch 107, and the stirring protrusion 108 can stir the branches and leaves, which is more conducive to improving the shredding ratio of branches and leaves.

[0036] This application also discloses a wood chipper, including the wood chipper disc 1 with the above-described structure.

[0037] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the principles and spirit of this application are included within the protection scope of this application.

Claims

1. A cutter head of a branch chipper, comprising a cutter head (1), the edge of the cutter head (1) being provided with a cutting opening (101), a cutting knife (2) being arranged on a first mounting surface (102) of the cutter head (1), the cutting knife (2) being located on one side of the cutting opening (101); characterized in that: The second mounting surface (103) opposite to the first mounting surface (102) of the cutter head (1) is provided with a chip guide (3) in a spiral structure, one end of the chip guide (3) is in contact with one side of the cutting knife (2) provided with the cutting opening (101).

2. The brush cutter head of claim 1, wherein: The one end of the chip guide (3) is flush with the side wall of the side of the cutting knife (2) provided with the cutting opening (101); and the end surface of the chip guide (3) is provided with a guide surface (301).

3. The brush cutter head of claim 1, wherein: The inner side of the chip guide (3) extends to the direction of the cutter head (1) to form a fixing part (302), the fixing part (302) is connected to the cutter head (1), and a containing space (303) is formed between the cutter head (1) and the chip guide (3); the chip guide (3) is integrally formed with the cutter head (1), or the fixing part (302) of the chip guide (3) is detachably connected to the cutter head (1).

4. The brush cutter head of claim 3, wherein: The end of the fixing part (302) close to the head of the chip guide (3) is fixedly connected to the cutter head (1) by a first fastener; and the end of the fixing part (302) close to the tail of the chip guide (3) is provided with a boss (304), the boss (304) is fixedly connected to the cutter head (1) by a second fastener.

5. The brush cutter head of claim 4, wherein: The first mounting surface (102) of the cutter head (1) is provided with a mounting groove (104), and the cutting knife (2) is mounted in the mounting groove (104); the groove bottom of the mounting groove (104) is provided with a connecting hole (105), and the first fastener is fixedly connected to the end of the fixing part (302) close to the head of the chip guide (3) after penetrating through the cutting knife (2) and the connecting hole (105).

6. The brush cutter head of claim 1, wherein: The tail of the chip guide (3) is provided with a chip guide plane (305).

7. The brush cutter head of claim 3, wherein: The edge of the cutter head (1) is also provided with a notch (107), one side of the notch (107) extends downward to form a stirring protrusion (108), and the stirring protrusion (108) extends into the containing space (303).

8. A brush cutter head according to any one of claims 1 to 7 wherein: The edge of the cutter head (1) is provided with at least two cutting openings (101), and correspondingly, the chip guide (3) is provided with at least two chip guides (3), the chip guides (3) are connected by a connecting shaft (306), the chip guides (3) are uniformly arranged along the peripheral wall of the connecting shaft (306), and the connecting shaft (306) is coaxial with the cutter head (1).

9. The brush cutter head of claim 8, wherein: The middle part of the connecting shaft (306) is provided with a mounting hole (307), and the middle part of the cutter head (1) is provided with a through hole (106), and the mounting hole (307) is arranged in alignment with the through hole (106).

10. A branch chipper comprising the branch chipper cutter head according to any one of claims 1 to 9.

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