CN216419671U - Cutting device for branch crusher and branch crusher - Google Patents

Abstract

The utility model discloses a cutting device and branch chip machine for branch chip machine, include: the cutter head is provided with a power input sleeve and a first fixed shaft; the first flail knife and the second flail knife are rotatably arranged on the first fixing shaft, the first flail knife and the second flail knife are arranged at intervals along the axial direction of the first fixing shaft, and cutting edges of the first flail knife and the second flail knife are bent towards the direction far away from the cutter head; the reamer disc is respectively connected with one end of the power input sleeve and one end of the first fixed shaft, which are respectively far away from the cutterhead; the bent blade is arranged on the cutter disc, and the cutting edge of the bent blade is bent towards the direction close to the cutter disc. The cutting spaces in the direction perpendicular to the cutter head can be completely covered by the cutting edges of the first flail knife and the second flail knife and the cutting edges of the bent blades, so that the crushing coverage area is maximized, and the branch crushing capacity is favorably improved. The bending direction of the cutting edges of the first flail knife and the second flail knife and the bending direction of the cutting edges of the bent blades are arranged in opposite directions, so that cutting in the direction perpendicular to the cutter head is more sufficient, and the branch crushing effect is better.

Description

Cutting device for branch crusher and branch crusher

Technical Field

The utility model relates to a garden machine technical field, more specifically say, relate to a cutting device for chipper. Furthermore, the utility model discloses still relate to a branch chip machine including above-mentioned cutting device for branch chip machine.

Background

At present, the cutting device of branch crusher usually includes the blade disc and locates the crushing blade of blade disc, and crushing blade among the prior art is mostly the individual layer distribution, and its sweep area is little, and crushing ability is poor for garrulous branch is efficient.

Therefore, how to provide a cutting device for a branch crusher with strong branch crushing capability is a problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention is directed to a cutting device for a branch crusher, which has a strong branch crushing capability.

Another object of the utility model is to provide a branch crusher including above-mentioned cutting device for branch crusher, its branch crushing is efficient.

In order to achieve the above object, the present invention provides the following technical solutions:

a cutting device for a chipper, comprising:

the cutter head is provided with a power input sleeve and a first fixed shaft;

the first flail knife and the second flail knife are rotatably arranged on the first fixing shaft, the first flail knife and the second flail knife are arranged at intervals along the axial direction of the first fixing shaft, and cutting edges of the first flail knife and the second flail knife are bent towards the direction far away from the cutter head;

the reamer disc is respectively connected with one end of the power input sleeve and one end of the first fixed shaft, which are far away from the cutterhead;

the bent blade is arranged on the cutter disc, and the cutting edge of the bent blade is bent towards the direction close to the cutter disc.

Preferably, the capstan head is provided with a bending part bending towards the direction away from the capstan head.

Preferably, a bushing for axial limiting is arranged between the first flail knife and the second flail knife.

Preferably, the reamer disk is connected with the first fixed shaft through a first adaptor.

Preferably, the bent blade is fixedly connected with the reamer disk through a second adapter.

Preferably, the cutter head is provided with arc-shaped fan blades.

Preferably, the arc-shaped fan blades extend from the first fixed shaft to the edge of the cutter head.

Preferably, the height of the arc-shaped fan blade gradually increases from one end close to the first fixed shaft to the other end.

Preferably, still including locating adjacent two the second fixed axle between the first fixed axle, the arc flabellum certainly the second fixed axle is to the edge part extension setting of blade disc.

A branch crusher comprises a cutting device, wherein the cutting device is any one of the cutting devices for branch crushers.

The utility model provides a cutting device for branch chip machine, the cutting edge through making first flail knife and second flail knife all buckles towards the direction of keeping away from the blade disc to the cutting edge that makes curved blade buckles towards the direction that is close to the blade disc, makes the cutting edge of first flail knife and second flail knife and the cutting edge of curved blade can cover the ascending cutting space of perpendicular to blade disc side completely, makes to smash coverage area and reaches the maximize, is favorable to increasing substantially the garrulous branch ability.

In addition, the bending directions of the cutting edges of the first flail knife and the second flail knife are opposite to the bending direction of the cutting edge of the bent blade, so that the cutting in the direction perpendicular to the cutter head is more sufficient, and the branch crushing capacity can be further improved.

The utility model provides a branch crusher, including above-mentioned cutting device for branch crusher, have above-mentioned beneficial effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural view of a cutting device for a branch crusher according to an embodiment of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a sectional view taken along line A-A of FIG. 2;

FIG. 4 is a sectional view taken along line B-B of FIG. 2;

fig. 5 is a cross-sectional view taken along line C-C of fig. 2.

The reference numerals in fig. 1 to 5 are as follows:

1 is a cutter head, 2 is a power input sleeve, 3 is a first fixed shaft, 4 is a first flail knife, 5 is a second flail knife, 6 is a cutter head, 61 is a bending part, 7 is a bent blade, 8 is a bush, 9 is a first bolt, 10 is a second bolt, 11 is a first nut, 12 is an arc-shaped fan blade, 13 is a second fixed shaft, 14 is a cutter, 15 is a third bolt, and 16 is a second nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The core of the utility model is to provide a cutting device for branch crusher, its branch crushing ability reinforce. The other core of the utility model is to provide a branch crusher with the cutting device, which has high branch crushing efficiency.

Referring to fig. 1-5, fig. 1 is a schematic structural view of a cutting device for a branch crusher according to an embodiment of the present invention; FIG. 2 is a top view of FIG. 1; FIG. 3 is a sectional view taken along line A-A of FIG. 2;

FIG. 4 is a sectional view taken along line B-B of FIG. 2; fig. 5 is a cross-sectional view taken along line C-C of fig. 2.

The utility model provides a cutting device for branch chip machine, including blade disc 1, power input sleeve 2, first fixed axle 3, first flail knife 4, second flail knife 5, reamer dish 6 and bent blade 7. Specifically, the power input sleeve 2 and the first fixed shaft 3 are both arranged on the cutter head 1, the first flail knife 4 and the second flail knife 5 are both rotatably arranged on the first fixed shaft 3, the first flail knife 4 and the second flail knife 5 are arranged at intervals along the axial direction of the first fixed shaft 3, and the cutting edges of the first flail knife 4 and the second flail knife 5 are both bent towards the direction far away from the cutter head 1; the cutterhead 6 is connected with one end, far away from the cutterhead 1, of the power input sleeve 2, and meanwhile, the cutterhead 6 is further connected with one end, far away from the cutterhead 1, of the first fixing shaft 3; the bent blade 7 is arranged on the cutter head 6, and the cutting edge of the bent blade 7 is bent towards the direction close to the cutter head 1.

It should be noted that the power input sleeve 2 is used for connecting with an output shaft of the rotary power, so that when the rotary power outputs the rotary motion, the cutter head 1 is driven to rotate through the power input sleeve 2. Preferably, the power input sleeve 2 is provided in the center of the cutter head 1.

It can be understood that the first flail knife 4 and the second flail knife 5 are both rotatably disposed on the first fixing shaft 3, when the cutter head 1 rotates, the first fixing shaft 3 drives the first flail knife 4 and the second flail knife 5 to rotate along with the cutter head 1, and at the same time, under the action of centrifugal force, the first flail knife 4 and the second flail knife 5 respectively rotate relative to the first fixing shaft 3, so that branches and leaves can be crushed by the first flail knife 4 and the second flail knife 5. The first flail knife 4 and the second flail knife 5 are arranged at intervals along the axial direction of the first fixing shaft 3 to form two layers of flail knives, so that the axial sweeping area is increased, and the crushing efficiency is improved.

In addition, it can be understood that, by reasonably designing the shape of the reamer disk 6, when the reamer disk 6 rotates along with the cutterhead 1, the reamer disk 6 has a certain limiting effect on the branches and leaves, so that the branches and leaves can more smoothly enter the crushing cavity between the cutterhead 1 and the reamer disk 6.

More importantly, the utility model provides a cutting device for branch chip machine, all buckle towards the direction of keeping away from blade disc 1 through the cutting edge that makes first flail knife 4 and second flail knife 5 to make bent blade 7's cutting edge buckle towards the direction of being close to blade disc 1, make first flail knife 4 and second flail knife 5's cutting edge and bent blade 7's cutting edge can cover the cutting space of perpendicular to 1 side of blade disc completely, make the axial smash coverage area reach the maximize, be favorable to increasing substantially the branch chip ability.

In addition, the bending directions of the cutting edges of the first flail knife 4 and the second flail knife 5 are opposite to the bending direction of the cutting edge of the bent blade 7, so that the cutting in the direction perpendicular to the cutter head 1 is more sufficient, and the branch crushing effect is better.

Preferably, the cutting edges of the first flail knife 4 and/or the second flail knife 5 and the cutting edges of the bent blades 7 at least partially overlap in a direction perpendicular to the cutter head 1, so that the branches and leaves are cut and crushed more fully, and the crushing efficiency and the crushing effect are improved.

In order to further improve the crushing efficiency and the crushing effect, on the basis of the above embodiment, the reamer disk 6 is provided with the bent portion 61 bent in a direction away from the cutter disk 1. The bending part 61 has a certain crushing effect on the branches and leaves, so that the crushing effect can be further improved. Moreover, the bent portion 61 is bent in a direction away from the cutter head 1, and the axial sweeping area can be further increased.

In addition, in order to facilitate the axial position limitation of the first flail knife 4 and the second flail knife 5, on the basis of the above-mentioned embodiment, a bushing 8 for axial position limitation is arranged between the first flail knife 4 and the second flail knife 5. That is, the first flail knife 4 and the second flail knife 5 are separated by the bushing 8 in this embodiment, and the length of the bushing 8 determines the separation distance between the first flail knife 4 and the second flail knife 5.

Further, in order to realize the connection of the cutterhead 6 with the first fixed shaft 3, on the basis of the above-mentioned embodiment, the cutterhead 6 is connected with the first fixed shaft 3 through a first adaptor. In view of simple structure and convenience of connection, it is preferable that the first fixing shaft 3 is provided with an internal thread, the first coupling member is a first bolt 9 threadedly connected with the internal thread, and the first bolt 9 is threadedly connected with the internal thread after sequentially passing through the cutter head 6, the first flail knife 4, the bushing 8 and the second flail knife 5. That is to say, the first fixing shaft 3 in this embodiment is a threaded sleeve, and the cutterhead 6, the first flail knife 4, the bushing 8, the second flail knife 5 and the first fixing shaft 3 are connected together by the connection of the first bolt 9 and the internal thread of the first fixing shaft 3, so that the structure is simple and the connection is convenient. As shown in fig. 4, the second flail knife 5 is closer to the cutter head 1 than the first flail knife 4, in this case, the end of the first fixed shaft 3 is used to axially limit the end of the second flail knife 5 away from the bushing 8, so as to determine the axial position of the second flail knife 5; and the winch disc 6 is used for axially limiting one end of the first flail knife 4 far away from the bushing 8 so as to limit the axial position of the first flail knife 4.

In addition, the above embodiment does not limit the specific connection mode between the bent blade 7 and the reamer disk 6, and as a preferable mode, in addition to the above embodiment, the bent blade 7 is fixedly connected with the reamer disk 6 through a second adaptor. In view of the simplicity of the structure and the convenience of connection, it is preferable that the second adaptor includes a second bolt 10 and a first nut 11 screw-locked with the second bolt 10. That is to say, the second bolt 10 passes through the bent blade 7 and the reamer disk 6 in sequence and then is locked with the first nut 11, so that the bent blade 7 and the reamer disk 6 are fixed, the structure is simple, and the connection is convenient.

In addition to the above embodiments, the cutter head 1 is provided with arc-shaped blades 12 so that the pulverized branches and leaves can be smoothly discharged. It can be understood that, in the process that the arc-shaped fan blades 12 rotate at a high speed along with the cutter head 1, the contact area between the arc-shaped surface of the arc-shaped fan blades 12 and air is large, so that eddy wind pressure is generated, the pressure of sucking and discharging materials can be increased, the branch and leaves cut and crushed by the bent blades 7, the first flail knives 4 and the second flail knives 5 can enter the space formed by the arc-shaped fan blades 12 more smoothly, and the branch and leaves can be discharged from the space formed by the arc-shaped fan blades 12 along with the eddy wind pressure.

In order to facilitate the arrangement of the arc-shaped fan blades 12, as a preferable scheme, on the basis of the above embodiment, the arc-shaped fan blades 12 extend from the first fixed shaft 3 to the edge portion of the cutter head 1. That is, one end of the arc-shaped fan blade 12 is connected to the first fixed shaft 3, and the other end of the arc-shaped fan blade 12 is a free end and extends toward the edge of the cutter head 1, so that the crushed branches and leaves are discharged from the edge of the cutter head 1 along the space defined by the arc-shaped fan blade 12.

Further, in order to increase the discharging pressure so as to discharge the crushed branches and leaves better, on the basis of the above embodiment, the height of the arc-shaped fan blades 12 is gradually increased from one end close to the first fixed shaft 3 to the other end. This is beneficial to increase the discharge pressure at the discharge port of the arc-shaped fan blade 12, so that the branches and leaves can be discharged more smoothly.

In addition, in order to fix the arc-shaped fan blades 12, in addition to the above embodiments, the cutter head further includes a second fixed shaft 13 disposed between two adjacent first fixed shafts 3, and the arc-shaped fan blades 12 extend from the second fixed shaft 13 toward the edge of the cutter head 1. That is, in the present embodiment, the second fixed shaft 13 is specially designed on the cutter head 1 to fix one end of the arc-shaped fan blade 12, so that the arc-shaped fan blade 12 extends from the second fixed shaft 13 to the edge of the cutter head 1. This is favorable to rationally setting up the position of arc flabellum 12, is favorable to rationally laying out arc flabellum 12.

Preferably, as shown in fig. 1, the number of the first fixing shafts 3 and the second fixing shafts 13 is two, two first fixing shafts 3 are disposed oppositely, two second fixing shafts 13 are disposed oppositely, the first fixing shafts 3 and the second fixing shafts 13 are circumferentially and uniformly distributed with respect to the power input casing 2, the number of the arc-shaped fan blades 12 is four, and four arc-shaped fan blades 12 are respectively connected with the two first fixing shafts 3 and the two second fixing shafts 13 in a one-to-one correspondence manner.

On this basis, the connection position of the bent blade 7 and the reamer disk 6 preferably corresponds to the second fixed shaft 13.

In consideration of convenience of assembly, it is preferable that the first fixing shaft 3 and the second fixing shaft 13 have the same structure, so that it is not necessary to distinguish the first fixing shaft 3 from the second fixing shaft 13 when mounting, which provides convenience of the overall assembly.

In addition, it will be understood by those skilled in the art that the side of the cutter head 1 remote from the arcuate blades 12 is provided with a cutter 14 to cut large branches on the other side of the cutter head 1. The cutter 14 is preferably fixedly arranged on the cutter head 1 through the connection of a third bolt 15 and a second nut 16. A material passing through groove is formed in the position, adjacent to the cutting knife 14, of the cutter head 1, so that branches cut by the cutting knife 14 enter a space formed by the arc-shaped fan blades 12 from the material passing through groove so as to be discharged.

Except that above-mentioned cutting device for the branch chip machine, the utility model discloses still provide a branch chip machine, this branch chip machine includes cutting device, and this cutting device is the cutting device for the branch chip machine that the above-mentioned embodiment is disclosed, and the structure of other each parts of this branch chip machine please refer to prior art, and this text is no longer repeated.

It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.

The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The cutting device for the branch crusher and the branch crusher provided by the utility model are described in detail above. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims (10)

1. A cutting device for a branch crusher, comprising:

the cutter head (1) is provided with a power input sleeve (2) and a first fixed shaft (3);

the first flail knife (4) and the second flail knife (5) are rotatably arranged on the first fixing shaft (3), the first flail knife (4) and the second flail knife (5) are arranged at intervals along the axial direction of the first fixing shaft (3), and cutting edges of the first flail knife and the second flail knife are bent towards the direction far away from the cutter head (1);

the reamer head (6) is respectively connected with one end, far away from the cutterhead (1), of the power input sleeve (2) and one end, far away from the cutterhead (1), of the first fixed shaft (3);

the bent blade (7) is arranged on the cutter disc (6), and the cutting edge of the bent blade (7) is bent towards the direction close to the cutter disc (1).

2. The cutting device for branch crushers according to claim 1, characterized in that the cutterhead (6) is provided with a bending portion (61) which is bent away from the cutterhead (1).

3. The cutting device for branch crushers according to claim 1, characterized in that a bushing (8) for axial limitation is provided between the first flail knife (4) and the second flail knife (5).

4. The cutting device for branch crushers according to claim 1, characterized in that said cutterhead (6) is connected to said first fixed shaft (3) by means of a first adaptor.

5. The cutting device for branch crushers according to claim 1, characterized in that said bent blade (7) is fixedly connected with said cutterhead (6) by means of a second adaptor.

6. The cutting device for branch crushers according to any one of claims 1 to 5, characterized in that said cutterhead (1) is provided with arc-shaped blades (12).

7. The cutting device for branch crushers according to claim 6, characterized in that said arc-shaped blades (12) are extended from said first fixed shaft (3) toward the edge of said cutterhead (1).

8. The cutting device for branch crushers according to claim 6, characterized in that the height of the arc-shaped fan blades (12) is gradually increased from one end near the first fixed shaft (3) to the other end.

9. The cutting device for the branch crusher according to claim 6, characterized in that the cutting device further comprises a second fixed shaft (13) arranged between two adjacent first fixed shafts (3), and the arc-shaped fan blades (12) extend from the second fixed shaft (13) to the edge of the cutter head (1).

10. A branch crusher comprising a cutting device, characterized in that the cutting device is a cutting device for a branch crusher according to any one of claims 1 to 9.

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