Multifunctional cutter head for branch crusher

Abstract

The multifunctional cutterhead comprises a main cutterhead body, fly cutters are connected to one side of the main cutterhead body through countersunk bolts, notches are formed in the main cutterhead body, a center shaft sleeve is fixedly connected to the center of the other side of the main cutterhead body, a scraper is connected to the outer side of the center shaft sleeve, and the scraper is fixedly connected to the main cutterhead body. One end of the central shaft sleeve is connected with an auxiliary cutter head, the main cutter head is connected with a spacer sleeve, an auxiliary cutter mechanism used for improving the branch crushing effect is connected between the spacer sleeve and the auxiliary cutter head, the two fly cutters are in central symmetry about the central shaft sleeve, the two rectangular notches are connected to one sides of the notches, and the fly cutters are connected to the other sides of the notches. And the fly cutters are in one-to-one correspondence with the notches. Branches cut by the fly cutter can be further beaten by the flail knife, so that the branches can be further crushed, the crushing uniformity of the branches is improved, and subsequent collection and treatment are facilitated.

Description

A multi-functional cutter head for a wood chipper Technical Field

[0001] This utility model relates to the field of wood chipper technology, and in particular to a multi-functional cutter disc for wood chippers. Background Technology

[0002] A branch shredder is a device specifically designed for processing tree branches, leaves, or crop straw. It is widely used in landscaping, agriculture, forestry, and other fields. With the advancement of urban greening construction, the application of branch shredders is becoming increasingly widespread.

[0003] Wood chippers generally come in two types: drum and disc. Disc chippers are widely used due to their simple structure, easy feeding, and uniform chipping. A common disc chipper consists of two or more blades, a disc, and a scraper. The blades are radially mounted on one side of the disc, evenly distributed around its circumference, while the scraper is radially mounted on the other side, rotating at high speed with the disc to generate a high-speed airflow that discharges the chopped wood chips through a discharge pipe. This type of chipper has a single shredding function.

[0004] Based on this, a multi-functional cutter head for a wood chipper is proposed. Summary of the Invention

[0005] The purpose of this utility model is to provide a multi-functional cutter disc for a wood chipper in order to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A multi-functional cutter head for a wood chipper includes a main cutter head, with a flying knife connected to one side of the main cutter head via a countersunk bolt. The main cutter head has a cutting slit. A central bushing is fixedly connected to the center of the other side of the main cutter head. A scraper is connected to the outer side of the central bushing and is fixedly connected to the main cutter head. A secondary cutter head is connected to one end of the central bushing. A spacer sleeve is connected to the main cutter head. A secondary blade mechanism for improving the wood chipping effect is connected between the spacer sleeve and the secondary cutter head.

[0008] Preferably, there are two flying knives, and the two flying knives are symmetrical about the central shaft sleeve.

[0009] Preferably, there are two cuts, which are rectangular in shape, and the throwing knife is connected to one side of the cut, with a one-to-one correspondence between the throwing knife and the cut.

[0010] Preferably, a lock nut is connected to the countersunk bolt, and three sets of countersunk bolts and lock nuts are connected to a single flying cutter.

[0011] Preferably, the secondary blade mechanism includes a throwing blade, which is connected between the secondary blade disc and the spacer sleeve via a throwing blade spacer sleeve and fastening bolts.

[0012] Preferably, a spring washer and a flat washer are provided at the connection between the fastening bolt and the cutter, and both the spring washer and the flat washer are fitted onto the fastening bolt.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0014] 1. This application adopts a shredder structure, which uses the shredder to further pound the branches cut by the flying blade, so that the branches can be further crushed, improving the uniformity of the crushing and facilitating subsequent collection and processing.

[0015] 2. This application adopts a blade spacer structure, which improves the firmness of the blade connection by using the blade spacer, and increases the friction between the structures by using spring pads and flat pads, so as to prevent the blade from shifting position during operation. At the same time, it can also play a role in dispersing pressure and preventing deformation at the connection. Attached Figure Description

[0016] Figure 1 shows a schematic diagram of the reverse side of the cutter head according to an embodiment of the present invention;

[0017] Figure 2 shows a schematic diagram of the front structure of the cutter head according to an embodiment of the present invention;

[0018] Figure 3 shows an exploded structural diagram of the cutter head and blade connection according to an embodiment of the present invention.

[0019] Legend:

[0020] 1. Main cutter head; 2. Scraper; 3. Secondary cutter head; 4. Spacer sleeve; 5. Central shaft sleeve; 6. Flying knife; 7. Countersunk bolt; 8. Locking nut; 9. Throwing knife; 10. Fastening bolt; 11. Spring washer; 12. Flat washer; 13. Throwing knife spacer sleeve; 14. Cutting edge. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] Please refer to Figures 1-3. This utility model provides a technical solution:

[0023] A multi-functional cutter disc for a wood chipper includes a main cutter disc 1. A flying knife 6 is connected to one side of the main cutter disc 1 via a countersunk bolt 7. A cutting slit 14 is provided on the main cutter disc 1. A central bushing 5 is fixedly connected to the center of the other side of the main cutter disc 1. A scraper 2 is connected to the outside of the central bushing 5 and is fixedly connected to the main cutter disc 1. A secondary cutter disc 3 is connected to one end of the central bushing 5. A spacer sleeve 4 is connected to the main cutter disc 1. A secondary blade mechanism for improving the wood chipping effect is connected between the spacer sleeve 4 and the secondary cutter disc 3.

[0024] Specifically, as shown in Figure 2, there are two flying knives 6. The two flying knives 6 are symmetrical about the central bushing 5. The installation position of the flying knives 6 is formed by die stamping and is at a certain angle to the disc surface of the main cutter disc 1. This makes the flying knives 6 at a certain angle to the disc surface after installation and has a certain amount of protrusion, making it easier for the wood chips to pass through.

[0025] Specifically, as shown in Figures 1 and 2, there are two cuts 14, which are rectangular. The flying knife 6 is connected to one side of the cut 14, and there is a one-to-one correspondence between the flying knife 6 and the cut 14. The branches enter the shredder through the feed port and are cut into uniform fragments when they come into contact with the flying knife 6 on the main cutter disc 1. The fragments then enter the other side of the main cutter disc 1 through the rectangular cut 14 on the main cutter disc 1.

[0026] Specifically, as shown in Figures 2 and 3, a lock nut 8 is connected to the countersunk bolt 7, and three sets of countersunk bolts 7 and lock nuts 8 are connected to a single flying cutter 6. The multiple sets of countersunk bolts 7 and lock nuts 8 are designed to improve the stability of the flying cutter 6 connection.

[0027] Specifically, as shown in Figure 3, the secondary blade mechanism includes a throwing blade 9. The throwing blade 9 is connected between the secondary blade disc 3 and the spacer sleeve 4 through a throwing blade spacer sleeve 13 and a fastening bolt 10. The throwing blade 9 has a V-shaped end, which can increase the contact area with the branches and improve the uniformity of crushing.

[0028] Specifically, as shown in Figure 3, a spring washer 11 and a flat washer 12 are provided at the connection between the fastening bolt 10 and the sling cutter 9. Both the spring washer 11 and the flat washer 12 are fitted onto the fastening bolt 10. By setting the spring washer 11 and the flat washer 12, the structural connection can be strengthened. The connection sequence on the back of the cutter head is as follows: spacer sleeve 4, sling cutter spacer sleeve 13, sling cutter 9, flat washer 12, spring washer 11 and secondary cutter head 3. The above structures are assembled in sequence and then connected by the fastening bolt 10.

[0029] In summary, the multi-functional cutter disc for a wood chipper provided in this embodiment is installed on the motor output end inside the wood chipper. When the motor is started, the cutter disc rotates. The branches to be crushed fall from the feed inlet onto the front of the cutter disc and come into contact with the flying knife 6 structure. The branches crushed by the flying knife 6 can enter the reverse area of ​​the cutter disc through the rectangular cut 14 on the main cutter disc 1. The rotating scraper 2 collects the crushed branches. The collected branches can be hammered by the throwing knife 9 to further improve the uniformity of the crushing. Finally, they are discharged uniformly from the discharge outlet of the wood chipper. That is, the cutter disc can suck up leaves and stably perform crushing operations.

[0030] The cutter head can achieve dual-sided feeding. When the feed inlet is set on the side facing the flying knife 6, the material falling on the flying knife 6 can first cut the branches and then crush them. When the feed inlet is set on the other side of the cutter head, the material falling on the cutter head can only be crushed and not cut. Therefore, the cutter head can achieve feeding in two different directions. In actual branch crushing, different components of the branches can be put into the corresponding feed inlets to improve the branch crushing efficiency. Specifically, the branches can be put into the feed inlet facing the flying knife 6, while the leaves can be put into the feed inlet facing the side of the cutter head with the throwing knife 9.

[0031] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A multi-functional cutter disc for a wood chipper, comprising a main cutter disc (1), characterized in that, One side of the main cutter head (1) is connected to a flying knife (6) by a countersunk bolt (7). A cutting slit (14) is opened on the main cutter head (1). A central bushing (5) is fixedly connected to the center of the other side of the main cutter head (1). A scraper (2) is connected to the outside of the central bushing (5). The scraper (2) is fixedly connected to the main cutter head (1). A secondary cutter head (3) is connected to one end of the central bushing (5). A spacer sleeve (4) is connected to the main cutter head (1). A secondary knife mechanism for improving the branch-breaking effect is connected between the spacer sleeve (4) and the secondary cutter head (3).

2. The multi-functional cutter head for a wood chipper according to claim 1, characterized in that, Two flying knives (6) are provided, and the two flying knives (6) are symmetrical about the central bushing (5).

3. A multi-functional cutter head for a wood chipper according to claim 1, characterized in that, There are two cuts (14), and the two cuts (14) are rectangular. The throwing knife (6) is connected to one side of the cut (14), and the throwing knife (6) corresponds to the cut (14) one by one.

4. A multi-functional cutter head for a wood chipper according to claim 1, characterized in that, The countersunk bolt (7) is connected to a lock nut (8), and each of the single fly cutters (6) is connected to three sets of countersunk bolts (7) and lock nuts (8).

5. A multi-functional cutter head for a wood chipper according to claim 1, characterized in that, The secondary blade mechanism includes a slinger (9), which is connected between the secondary blade disc (3) and the spacer sleeve (4) via a slinger spacer sleeve (13) and a fastening bolt (10).

6. A multi-functional cutter head for a wood chipper according to claim 5, characterized in that, The fastening bolt (10) and the slinger (9) are connected by a spring washer (11) and a flat washer (12), both of which are fitted onto the fastening bolt (10).

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