CN210700485U - Shredder and cutter head thereof - Google Patents

Abstract

The utility model discloses a shredder and blade disc thereof, shredder's blade disc is including the blade holder that has the shaft hole to and install the claw at the blade holder edge through connecting piece detachably, still be provided with the navigation key between claw and the blade holder, and be provided with on the claw with navigation key interference fit's claw keyway, be provided with on the blade holder with navigation key interference fit's blade holder keyway. When part of the cutter claws are damaged, the damaged cutter claws can be independently disassembled and replaced, and compared with the conventional mode of integrally replacing the cutter head, the cutter head disclosed by the utility model effectively reduces the use cost; in addition, the positioning key is arranged between the cutter claw and the cutter holder, and the cutter claw and the cutter holder are in interference fit with the positioning key, so that accurate positioning between the cutter claw and the cutter holder is ensured, and the shearing effect of the shredder is also ensured. The utility model discloses a shredder has adopted above-mentioned blade disc.

Description

Shredder and cutter head thereof

Technical Field

The utility model relates to a machining apparatus design production technical field, more specifically say, relate to a shredder and blade disc thereof.

Background

The shredder is taken as a crushing device and is widely applied to crushing materials such as domestic waste, kitchen waste, dangerous waste, large waste, garden waste, scrap tires, electronic waste and the like, the shredder is in a severe environment for a long time, the existing shredder cutter head is mostly designed in an integrated mode, the cutter head can be impacted and abraded continuously in the using process, once the cutter head is damaged, a box body of the shredder needs to be disassembled, a cutter shaft component is taken down, the cutter head which needs to be replaced is taken down from the cutter shaft component, and then a new cutter head is replaced, so that time and labor are wasted in the whole process; and the damaged cutter head is usually only damaged at the cutter claw part at the edge, so that the replacement cost is high due to the integral replacement of the cutter head.

In order to reduce blade disc replacement cost, a modular blade disc has appeared on the market, this kind of modular blade disc is including setting up the blade holder in the pivot, and detachably installs the claw on the blade holder, but the claw in this kind of modular blade disc only passes through bolted connection with the blade disc, there is not any other supplementary parts that improve positioning accuracy, because bolt and bolt hole cooperation tolerance's existence, it is not good enough to lead to the location of claw after the change on the blade holder, standard clearance between the adjacent claw can't obtain guaranteeing, this directly influences the shearing effect of shredder, if the shredder is the biax design, also probably damage the shredder because of the claw collision.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a cutter head of shredder to can realize the change alone of claw on the cutter head on the one hand, reduce the replacement cost after the cutter head damages, on the other hand can also make the claw after the change pinpoint on the cutter head, guarantees the shearing effect of shredder.

Another object of the utility model is to provide a shredder that adopts above-mentioned blade disc.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a blade disc of shredder, is including the blade holder that has the shaft hole to and install through connecting piece detachably the claw at blade holder edge, the claw with still be provided with the navigation key between the blade holder, and be provided with on the claw with navigation key interference fit's claw keyway, be provided with on the blade holder with navigation key interference fit's blade holder keyway.

Preferably, the interference of the positioning key with respect to the tool holder key groove is larger than the interference of the positioning key groove with respect to the tool holder key groove.

Preferably, the knife claw is provided with a first jackscrew hole, and the first jackscrew hole is used for installing a jackscrew so as to detach the knife claw from the positioning key.

Preferably, the positioning key is further provided with a second jackscrew hole, and the second jackscrew hole is used for installing a jackscrew so as to detach the positioning key from the tool apron key groove.

Preferably, the connecting member is a bolt or a screw.

Preferably, the connecting piece is further sleeved with an elastic washer for preventing the connecting piece from loosening.

Preferably, the tool apron is in a regular hexagon shape, and each edge of the tool apron is provided with one tool claw.

Preferably, the shaft hole is a regular hexagon shaft hole, and each edge of the shaft hole is further provided with a concave pit which is concave towards the outer side of the tool apron.

Preferably, the concave pit is an arc concave pit taking the center of the shaft hole as a circle center.

Preferably, the number of the tool claws is even.

Preferably, one or more second jackscrew holes are formed in the positioning key.

The utility model discloses a shredder, its blade disc be the blade disc of the above-mentioned arbitrary disclosed shredder.

The utility model discloses a cutter disc of shredder, its blade holder and claw are split type structure, and the claw passes through connecting piece detachably and connects at the edge of blade holder, in addition, still is provided with the navigation key between claw and the blade holder to the claw keyway and the navigation key interference fit that set up on the claw, the blade holder keyway and the navigation key interference fit that set up on the blade holder.

The cutter head is designed into a split structure comprising the cutter holder and the cutter claws, the detachable connection of the cutter claws on the cutter head is realized in a mode that the cutter claws are connected to the cutter head through the connecting pieces, when part of the cutter claws are damaged, the damaged cutter claws can be detached and replaced independently, and compared with the mode of replacing the cutter head integrally at present, the cutter head disclosed by the utility model effectively reduces the use cost; in addition, the positioning key is arranged between the cutter claw and the cutter holder, and the cutter claw and the cutter holder are in interference fit with the positioning key, so that accurate positioning between the cutter claw and the cutter holder is ensured, and the shearing effect of the shredder is also ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of a cutter head disclosed in the present invention;

FIG. 2 is a front schematic view of the cutterhead disclosed in FIG. 1;

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

fig. 4 is a schematic structural view of the tool holder disclosed in the present invention.

Wherein the content of the first and second substances,

the tool comprises a tool apron, a tool claw, a positioning key, a connecting piece, an elastic washer, a concave pit, a tool apron key groove and a first jackscrew hole, wherein the tool apron is 1, the tool claw is 2, the positioning key is 3, the connecting piece is 4, the elastic washer is 5, the concave pit is 1a, the tool apron key groove.

Detailed Description

The core of the utility model lies in providing a cutter head of shredder to can realize the change alone of sword claw on the cutter head on the one hand, reduce the replacement cost after the cutter head damages, on the other hand can also make the sword claw after the change pinpoint on the cutter head, guarantees the shearing effect of shredder.

The other core of the utility model also provides a shredder with the cutter head.

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 work belong to the protection scope of the present invention.

The utility model discloses a blade disc of shredder, including split type blade holder 1 and claw 2, claw 2 passes through 4 detachably of connecting piece and installs at blade holder 1 edge, as shown in fig. 1, be provided with the cutting edge that can cut the object on the claw 2, be provided with on the blade holder 1 be used for with pivot complex shaft hole, in addition, still be provided with navigation key 3 between claw 2 and the blade holder 1, as shown in fig. 1 to fig. 4, and be provided with on the claw 2 with 3 interference fit's of navigation key claw keyway, be provided with on the blade holder 1 with 3 interference fit's of navigation key blade holder keyway 1 b.

Therefore, the cutter head disclosed in the above embodiment is actually a split structure, and comprises the cutter holder 1 and the cutter claw 2, and the cutter claw 2 is detachably connected to the cutter holder 1 through the connecting piece 4, when part of the cutter claw 2 is damaged, the damaged cutter claw 2 can be independently detached and replaced, and compared with the existing mode of integrally replacing the cutter head, the cutter head disclosed in the above embodiment effectively reduces the use cost; in addition, the positioning key 3 is arranged between the claw 2 and the cutter holder 1, and the claw 2 and the cutter holder 1 are in interference fit with the positioning key 3, so that accurate positioning between the claw 2 and the cutter holder 1 is ensured, and the shearing effect of the shredder is also ensured.

It should be noted that the type of the connecting member 4 in the above embodiments is not limited to one, and may be a screw or a bolt, and the type of the positioning key 3 may also be selected in many ways, for example, it may be a flat key, a semicircular key, or a wedge key, but in view of the convenience of processing, the positioning key 3 in the present invention is preferably a flat key.

In order to further optimize the technical solution in the above embodiment, the interference of the positioning key 3 with respect to the holder key slot 1b in the present embodiment is larger than the interference of the positioning key 3 with respect to the jaw key slot, that is, when a flat key is used, the size of the holder key slot 1b is smaller than that of the jaw key slot.

Considering the convenience when the knife claw 2 is detached from the positioning key 3, in this embodiment, one or more first jackscrew holes 2a are further formed in the knife claw 2, as shown in fig. 1, under a normal working state, a jackscrew is not screwed into the first jackscrew hole 2a, when the knife claw 2 needs to be detached, the jackscrew is screwed into the first jackscrew hole, when the end of the jackscrew abuts against the positioning key 3, under the action of the jacking force of the jackscrew, the key groove of the knife claw is gradually separated from the positioning key 3, so that the detachment of the knife claw 2 is completed.

Consider the convenience when navigation key 3 is dismantled from blade holder 1, one or more second jackscrew hole has still been seted up on navigation key 3, under normal operating condition, the downthehole screw in jackscrew of second jackscrew, when needs carry out navigation key 3 and dismantle, downthehole with jackscrew screw in second jackscrew, when the bottom of jackscrew tip and blade holder keyway 1b offsets, under the tight power effect in top of jackscrew, navigation key 3 will break away from blade holder keyway 1b to accomplish the dismantlement of navigation key 3.

The connecting piece 4 is a bolt or a screw, the connecting hole formed in the cutter claw 2 is a sunken connecting hole, and in order to further prevent the screw or the bolt from loosening, an elastic washer 5 for preventing the connecting piece from loosening is further sleeved on the connecting piece 4, as shown in fig. 3.

Referring to fig. 1 to 4, in the embodiment of the present invention, the tool post 1 is a regular hexagon, and each edge of the tool post 1 is provided with a claw 2, the claw 2 is overall in a hook shape, and the claws 2 are mounted on the edge of the tool post 1 in an end-to-end manner, of course, the tool post 1 may also be a polygon with other number of edges, such as a regular octagon, a regular dodecagon, etc., and of course, when the processing difficulty and the adaptability of the shape structure are not considered, it is a feasible solution that the tool post 1 is a regular pentagon.

The utility model provides a preferred mode, the shaft hole is regular hexagon, because the installation tolerance of the last shaft hole of blade holder 1 and pivot is very limited, this leads to shaft hole and pivot very difficult at the actual installation in-process, in order effectively to reduce the installation degree of difficulty of shaft hole and pivot, each edge in shaft hole still is provided with the sunken pit 1a in the 1 outside of orientation blade holder in this embodiment, as shown in fig. 2, the setting of pit 1a is with the cooperation intensity that does not reduce shaft hole and pivot as the standard, the area of contact in pivot and shaft hole can effectively be reduced in the setting of pit 1a, thereby reduce the installation degree of difficulty of shaft hole and pivot.

In this embodiment, it is recommended to design the concave pit 1a as an arc-shaped concave pit with the center of the shaft hole as the center of a circle, which can effectively improve the processing convenience of the shaft hole, and the circular hole can be processed firstly in the actual processing process, and then the regular hexagon shaft hole can be processed.

The number of the cutter claws 2 is preferably even, so that the consistent shape and size of each cutter claw 2 and the variety of parts are ensured, and the stock management is facilitated.

The cutter claw 2 is preferably made of high-strength alloy steel and is subjected to integral carburizing and quenching treatment to enhance the hardness, and the cutter holder 1 is made of high-quality carbon structural steel, so that the use performance is guaranteed while the cost is reduced.

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

The previous description of the disclosed embodiments is provided to enable any person 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 generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended 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 (10)

1. The utility model provides a blade disc of shredder, is including blade holder (1) that has the shaft hole to and install through connecting piece (4) detachably blade claw (2) at blade holder edge, a serial communication port, blade claw (2) with still be provided with navigation key (3) between blade holder (1), and be provided with on blade claw (2) with navigation key (3) interference fit's blade claw keyway, be provided with on blade holder (1) with navigation key (3) interference fit's blade holder keyway (1 b).

2. A shredder plate according to claim 1, characterised in that the interference of the positioning key (3) with respect to the holder keyway (1b) is greater than the interference of the positioning key (3) with respect to the holder keyway.

3. A cutter head of a shredder according to claim 2, wherein the claw (2) is provided with a first terminal screw hole (2a), and the first terminal screw hole (2a) is used for installing a terminal screw so as to detach the claw (2) from the positioning key (3).

4. A cutter head of a shredder according to claim 2, wherein the positioning key (3) is further provided with a second threading hole for installing a threading so as to detach the positioning key (3) from the holder key groove (1 b).

5. A shredder head according to any one of claims 1 to 4, characterised in that the coupling means (4) are bolts or screws.

6. A cutterhead in accordance with claim 5, wherein the connecting member (4) is also provided with a resilient washer (5) for preventing the connecting member (4) from loosening.

7. A cutterhead in accordance with claim 1, wherein the knife holder (1) is of regular hexagonal shape and one of the claws (2) is provided on each side of the knife holder (1).

8. A cutterhead for a shredder according to claim 7, in which the axial hole is a regular hexagonal hole and a recess (1a) is provided on each side of the hole, recessed towards the outside of the seat.

9. A shredder plate according to claim 8, characterised in that said recesses (1a) are arc-shaped recesses centered on the centre of said axial hole.

10. A shredder, characterized in that the cutter head is a shredder cutter head according to any one of claims 1 to 9.

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