Novel double-layer cutter head of shredding machine

Abstract

The novel double-layer cutter head of the shredding machine comprises a cutter head body and a cutter head through hole, cutter body installation grooves are evenly distributed in the cutter head body, two symmetrically-arranged cutter body bases are detachably filled in each cutter body installation groove, and a fixing bolt is detachably arranged between each cutter body base and the cutter head body. A shredding half cutter body is arranged on the cutter body base; the two shredding half cutter bodies are matched to form the complete shredding cutter, in the using process, the abrasion speed of the shredding half cutter body making contact with materials firstly is obviously higher than that of the other shredding half cutter body, and when the shredding half cutter body with the high abrasion speed is seriously abraded, the positions of the two shredding half cutter bodies can be changed, so that the shredding cutter is formed. The non-worn surfaces of the two half cutter bodies face outwards, almost equivalently, a new shredding cutter is formed, the new shredding cutter does not need to be directly replaced, the replacement period and the service life of the shredding cutter are indirectly prolonged, the utilization rate of the shredding cutter is increased, and the maintenance cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a supporting component for a shredder, in particular to a novel double-layer cutter head for a shredder. BACKGROUND

[0002] The shredder rotates through the rotation of the shredding shaft, drives the cutter head fixedly assembled therewith to rotate synchronously, and realizes the shredding of materials by using the shredding knives arranged and installed on the cutter head. In the process of shredding the materials, one side of the shredding knives will first contact the materials, and a large friction will be generated in the process of contact between the two. According to the different materials, even collision will be generated, which causes the fast wear of one side of the shredding knives and almost no wear of the other side. In order to ensure the shredding effect and efficiency of the materials, the shredding knives need to be maintained or replaced at irregular intervals. However, the currently used shredding knives are mostly of an integral structure, and when replacement is needed, the entire cutter body or cutter head needs to be completely disassembled and replaced at one time, which has a high maintenance cost of the cutter body and a short service life, and thus is not conducive to reducing the maintenance cost and improving the utilization rate of the cutter body. SUMMARY

[0003] The technical problem to be solved by the utility model is to provide a novel double-layer cutter head for a shredder, which can improve the utilization rate of the cutter body, prolong the replacement cycle of the cutter body, and indirectly prolong the service life of the cutter body.

[0004] To solve the above technical problem, the technical scheme of the utility model is as follows: a novel double-layer cutter head for a shredder, comprising a cutter head body, a cutter head through hole for facilitating assembly is arranged through the cutter head body, cutter body mounting grooves are uniformly arranged on the arc surface of the circumferential side of the cutter head body, two symmetrically arranged cutter body bases are respectively and detachably filled in each cutter body mounting groove, a fixing bolt is respectively and detachably arranged between each cutter body base and the cutter head body, a shredding half cutter body is correspondingly arranged on the cutter body base, and two shredding half cutter bodies are cooperatively formed into a shredding knife by extending outward from the cutter body base.

[0005] As a preferred technical scheme, the shredding half cutter body and the corresponding cutter body base are of an integral molding structure.

[0006] As a preferred technical scheme, the cutter body base is arranged to gradually decrease in thickness outward from the shredding half cutter body, and the top surface of the cutter body base is arranged to be a plane that gradually decreases and inclines outward from the shredding half cutter body.

[0007] As a preferred technical scheme, a cutter body plug-in mounting groove is arranged through the cutter body base, and a cutter body plug-in mounting seat is arranged at the bottom end of the shredding half cutter body and is plug-in mounted with the cutter body plug-in mounting groove.

[0008] As a preferred technical scheme, the cutter body plug-in mounting groove is arranged to be a trapezoidal groove, and correspondingly, the cutter body plug-in mounting seat is arranged to be a trapezoidal plug-in mounting seat.

[0009] Preferably, the insertion side of the shredding half-blade body is in a rectangular structure, and the two adjacent surfaces of the inserted shredding half-blade bodies are abutted and arranged.

[0010] Preferably, the insertion side of the shredding half-blade body is in a trapezoidal structure with the upper side being narrow and the lower side being wide, the blade body base of the two shredding half-blade bodies is respectively welded with a blade body abutting plate, the two blade body abutting plates are abutted and arranged, and after abutting, the two blade body abutting plates are in a trapezoidal structure with the upper side being wide and the lower side being narrow, and the surfaces of the two shredding half-blade bodies and the blade body abutting plates are abutted and arranged.

[0011] As an improvement of the above technical scheme, the blade body mounting groove is arranged to open on a disc surface of the cutter disc body, a blade body limiting baffle is detachably arranged on the disc surface of the cutter disc body at the opening of the blade body mounting groove, and the blade body limiting baffle is detachably connected with the two blade body bases.

[0012] Thanks to the above technical scheme, the novel double-layer cutter disc of the shredder comprises a cutter disc body, a cutter disc through hole is arranged to pass through the cutter disc body for facilitating assembly, a plurality of blade body mounting grooves are uniformly arranged on the arc surface of the circumferential side of the cutter disc body, two symmetrically arranged blade body bases are respectively and detachably filled in each blade body mounting groove, a fixing bolt is detachably arranged between each blade body base and the cutter disc body, a shredding half-blade body is arranged on the blade body base, and two shredding half-blade bodies are extended outward from the blade body base to cooperatively form a shredding cutter. The novel double-layer cutter disc of the shredder has the following beneficial effects: two shredding half-blade bodies cooperatively form a complete shredding cutter, the wear speed of the shredding half-blade body first contacting the material is obviously faster than that of the other shredding half-blade body during use, when the shredding half-blade body with the fast wear speed is seriously worn, the positions of the two shredding half-blade bodies are exchanged to make the surfaces of the two half-blade bodies not worn outward, which is equivalent to forming a new shredding cutter, and the replacement cycle and service life of the shredding cutter are indirectly prolonged, the utilization rate of the shredding cutter is improved, and the maintenance cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0013] The following drawings are only intended to schematically illustrate and explain the present application, and do not limit the scope of the present application. Among them:

[0014] Figure 1 is a structural schematic diagram of an embodiment of the present application;

[0015] Figure 2 is a side view of an embodiment of the present application;

[0016] Figure 3 is a cross-sectional structural schematic diagram of a cutter disc body of an embodiment of the present application;

[0017] Figure 4 is the position of the two cutter body base of the utility model embodiment before and after the exchange of schematic diagram;

[0018] Figure 5 is the cross section structure schematic diagram of the utility model embodiment;

[0019] Figure 6 is the cross section structure schematic diagram of the cutter body base of the utility model embodiment;

[0020] Figure 7 is the position of the two shredding half cutter body of the utility model embodiment before and after the exchange of schematic diagram;

[0021] Figure 8 is the schematic diagram of the trapezoidal structure's shredding half cutter body and cutter body base of the utility model embodiment;

[0022] Figure 9 is the installation schematic diagram of the trapezoidal structure's shredding half cutter body of the utility model embodiment;

[0023] In the drawing: 1-cutter body; 2-cutter hole; 3-cutter mounting groove; 4-cutter base; 5-fixing bolt; 6-shredding half cutter body; 7-cutter plug-in groove; 8-cutter plug-in seat; 9-cutter limiting baffle; 10-cutter abutting plate. DETAILED DESCRIPTION

[0024] The utility model is further described below in combination with the drawings and embodiments. In the following detailed description, only certain exemplary embodiments of the utility model are described by way of illustration. It is needless to say that those skilled in the art can realize that the described embodiments can be modified in various ways without departing from the spirit and scope of the utility model. Therefore, the drawings and description are illustrative in nature and are not used to limit the protection scope of the claims.

[0025] As Figures 1 to 7 The novel double-layer cutter disc of the shredder is used in the following manner: a plurality of double-layer cutter discs are arranged in a sleeved manner on the parallelly arranged shredding shafts in the shredder and are driven to rotate synchronously by the rotation of the shredding shafts, and the shearing, extruding, crushing and outputting of materials are completed under the rotation of the double-layer cutter discs. Specifically, the double-layer cutter disc comprises a cutter body 1, a cutter hole 2 is formed through the cutter body 1 for facilitating assembly, and the cutter hole 2 is generally provided as a six-ribbed hole or is provided with a meshing groove, a meshing tooth or the like on the hole wall to form a limiting assembly with the shredding shaft, thereby improving the firmness and stability of the assembly of the cutter body 1.

[0026] The cutter mounting grooves 3 are uniformly distributed on the arc surface of the periphery of the cutter body 1, and two symmetrically arranged cutter bases 4 are respectively detachably filled in each cutter mounting groove 3. As Figure 3As shown, the cutter body mounting groove 3 can be provided through both sides of the cutter disc body 1, of course, the cutter body mounting groove 3 can also be provided without penetrating the cutter disc body 1, but only recessed on the arc wall of the side of the cutter disc body 1, so as to form limiting with the two circular disc surfaces of the cutter disc body 1 to the cutter body base 4, so that the fixing effect is better.

[0027] A fixing bolt 5 is detachably arranged between each of the cutter body base 4 and the cutter disc body 1, a shredding half cutter body 6 is correspondingly arranged on the cutter body base 4, and the two shredding half cutter bodies 6 are extended outward from the cutter body base 4 to cooperatively form a shredding cutter. The cutter body base 4 is mounted and fixed in the cutter body mounting groove 3 to realize the connection with the cutter disc body 1, the contact area with the cutter disc body 1 is large, which helps to improve the firmness of the installation, and the cutter body base 4 can be limited by the inner wall of the cutter body mounting groove 3 to prevent loosening under the friction and collision with the material, and the loosening and falling of the fixing bolt 5 caused by the accumulation of time.

[0028] The shredding half cutter body 6 can be directly welded and fixed on the cutter body base 4, but in order to ensure the use strength of the two, the shredding half cutter body 6 and the corresponding cutter body base 4 are preferably an integral molding structure. In order to better cooperate with the cutter disc body 1 and the cutter body mounting groove 3, the cutter body base 4 is gradually reduced in thickness from the shredding half cutter body 6 outward, and the top surface of the cutter body base 4 is provided as a gradually inclined plane from the shredding half cutter body 6 outward. Since the size difference between the cutter body base 4 and the cutter disc body 1 is large, the two can basically present a smooth transition state after abutting, without a relatively obvious protrusion, so as not to form a jam to the material during the shredding operation, to reduce the shredding resistance, and also avoid unnecessary wear to the entire structure.

[0029] The two shredding half cutter bodies 6 and the cutter body base 4 are cooperated to form a complete shredding cutter. Figure 4The two halves are distinguished by half-blade body A on the left and half-blade body B on the right, half-blade body A is provided with blade surface A1 and blade surface A2, half-blade body B is provided with blade surface B1 and blade surface B2, blade surface A2 and blade surface B2 are attached, assuming that the shredding shaft drives both to rotate clockwise, then the blade surface B1 of half-blade body B will first contact the material, causing its wear speed to be significantly faster than half-blade body A. When it is observed that the blade surface B1 of half-blade body B is severely worn, in order to ensure the shredding efficiency and effect of the shredder, first, the two blade body bases 4 can be disassembled, rotated 180° respectively, and then installed in the exchanged positions, so that half-blade body B is on the left and half-blade body A is on the right, and the blade surface A1 of half-blade body A first contacts the material; after a period of use, if the blade surface A1 of half-blade body A is also severely worn, half-blade body A can be disassembled and replaced with a new half-blade body; after a period of use, if half-blade body B is also severely worn, it is replaced again. As can be seen, when the half-blade body is replaced, one of them can be temporarily replaced, thereby improving the utilization rate of the half-blade body and reducing the maintenance cost. The half-blade body A and the half-blade body B are completely symmetrical, which facilitates the simplification of the processing mold.

[0030] A blade body insertion slot 7 is provided through the blade body base 4, the bottom end of the shredding half-blade body 6 is provided with a blade body insertion seat 8 which is inserted and matched with the blade body insertion slot 7, the blade body insertion slot 7 is designed as a trapezoidal slot, and correspondingly, the blade body insertion seat 8 is designed as a trapezoidal insertion seat. Through the above design, the shredding half-blade body 6 and the blade body base 4 can be detachably connected. When the shredding half-blade body 6 needs to be replaced, the corresponding blade body base 4 is disassembled, the severely worn shredding half-blade body 6 is knocked out and a new one is knocked in, so that the half-blade body can be replaced, and the blade body base 4 can be reused, which helps to further reduce the maintenance cost. The above scheme is suitable for the design that the blade body mounting slot 3 does not penetrate the cutter disc body 1, so as to limit the inserted shredding half-blade body 6 by means of the two circular disc surfaces of the cutter disc body 1. In order to ensure the stress capacity of the shredding half-blade body 6 during material shredding, the bottom of the shredding half-blade body 6 can be extended and inserted into the blade body base 4, the insertion side of the shredding half-blade body 6 is a rectangular structure, and the adjacent surfaces of the two shredding half-blade bodies 6 are attached and abutted after insertion, without gaps in the middle, so as to avoid the entry of the crushed material to cause wear on the surface of the half-blade body.

[0031] The detachable design of the shredding half-blade body 6 and the blade body base 4 can realize the position exchange of only two shredding half-blade bodies 6. Figure 7As shown, before the position exchange of the two shredding half-blades 6, the half-blade A is on the left and the half-blade B is on the right, the blade surface A1 of the half-blade A is on the outside and the blade surface A2 is on the inside, the blade surface B1 of the half-blade B is on the outside and the blade surface B2 is on the inside, and the blade surface A2 and the blade surface B2 are in contact. Assuming that the two are rotated clockwise by the shredding shaft, the blade surface B1 of the half-blade B will first contact the material, causing its wear speed to be significantly faster than that of the half-blade A. During use, when serious wear of the blade surface B1 of the half-blade B is observed, in order to ensure the shredding efficiency and effect of the shredder, the two blade body bases 4 can be first disassembled, the half-blade A and the half-blade B are knocked out and exchanged in position, and after the position exchange, the half-blade B is on the left and the half-blade A is on the right, the blade surface A2 of the half-blade A is on the outside and the blade surface A1 is on the inside, the blade surface B2 of the half-blade B is on the outside and the blade surface B1 is on the inside, and the blade surface A1 and the blade surface B1 are in contact. Moreover, due to the detachable design of the shredding half-blade 6 and the blade body base 4, the blade body base 4 can be reused.

[0032] In order to facilitate the insertion and installation of the shredding half-blade 6, the blade body mounting groove 3 can be provided with an opening on the disc surface of the blade disc body 1, and a blade body limiting baffle 9 can be detachably arranged on the opening corresponding to the blade body mounting groove 3 on the disc surface of the blade disc body 1. The blade body limiting baffle 9 and the two blade body bases 4 are detachably connected by connecting bolts. The blade body limiting baffle 9 and the blade disc body 1 cooperate to limit the circumferential side of the blade body base 4. When the position exchange or replacement of the shredding half-blade 6 is performed, the blade body limiting baffle 9 is disassembled, and the corresponding shredding half-blade 6 is directly knocked out or knocked in from the side of the blade disc body 1, thereby avoiding the disassembly of the blade body base 4 and facilitating the operation.

[0033] As shown in Figure 8 and Figure 9 The insertion side of the shredding half-blade 6 is a trapezoidal structure with a narrow upper part and a wide lower part, and the blade body abutting plates 10 are respectively welded to the blade body bases 4 between the two shredding half-blades 6. The two blade body abutting plates 10 are in abutting contact and form a trapezoidal structure with a narrow lower part and a wide upper part after abutting, and the surfaces of the two shredding half-blades 6 and the blade body abutting plates 10 are in abutting contact. The two blade body abutting plates 10 are used to fill the gap between the two shredding half-blades 6 to prevent the shredded material from entering the contact surface and causing unnecessary wear, and to support the shredding half-blade 6. After the assembly of the shredding half-blade 6, the blade body base 4, and the blade disc body 1, the two shredding half-blades 6 and the two blade body abutting plates 10 form a trapezoidal structure with a narrow upper part and a wide lower part, and are in close abutment to ensure the strength of the blade body, so that the outer side of the shredding half-blade 6 has a slope and a narrow outer end, which helps to more smoothly shred the material.

[0034] The description is given for the purpose of exemplification and description only and is not intended to be exhaustive or to limit the application to the precise form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. Embodiments were chosen and described in order to best explain the principles of the application and its practical application and to thereby enable others skilled in the art to best utilize the application, as well as various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A novel double-layer cutter disc for a shredder, comprising a cutter disc body, wherein a through hole for easy assembly is provided through the cutter disc body, characterized in that: The blade mounting grooves are evenly distributed on the arc surface around the blade disc body. Each blade mounting groove is detachably filled with two symmetrically arranged blade bases. Each blade base is detachably fixed with a bolt between it and the blade disc body. Each blade base is provided with a corresponding shredding half blade, and the two shredding half blades extend outward from the blade base to form a shredding blade.

2. The novel double-layer blade disc of the shredder as described in claim 1, characterized in that: The shredding half-blade and the corresponding blade base are integrally formed.

3. The novel double-layer cutter disc of the shredder as described in claim 1, characterized in that: The thickness of the blade base gradually decreases from the shredding half-blade outwards, and the top surface of the blade base is a plane that gradually slopes downwards from the shredding half-blade outwards.

4. The novel double-layer cutter disc of the shredder as described in claim 1, characterized in that: A blade insertion groove is provided through the blade base, and a blade insertion seat is provided at the bottom end of the shredding half blade to be inserted and fitted into the blade insertion groove.

5. The novel double-layer cutter disc of the shredder as described in claim 4, characterized in that: The tool body insertion slot is configured as a trapezoidal slot, and correspondingly, the tool body insertion seat is configured as a trapezoidal insertion seat.

6. The novel double-layer cutter disc of the shredder as described in claim 5, characterized in that: The insertion side of the shredding half-blade is rectangular, and after insertion, the adjacent surfaces of the two shredding half-blades are fitted together and abut against each other.

7. The novel double-layer cutter disc of the shredder as described in claim 5, characterized in that: The insertion side of the shredding half-blade has a trapezoidal structure that is narrower at the top and wider at the bottom. The blade base between the two shredding half-blades is respectively welded with blade abutment plates. The two blade abutment plates are joined together and abut against each other, forming a trapezoidal structure that is narrower at the bottom and wider at the top. The two shredding half-blades are respectively joined together and abut against the surface of the blade abutment plates.

8. The novel double-layer blade disc of the shredder as described in any one of claims 4 to 7, characterized in that: The blade mounting slot is provided with an opening on one plate surface of the blade disc body. A blade limiting baffle is detachably provided on the plate surface of the blade disc body at the opening of the blade mounting slot. The blade limiting baffle is detachably connected to the two blade bases respectively.

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