CN209020525U - A kind of crushing knife - Google Patents

Abstract

The utility model discloses a kind of crushing knifes, including knife leaf and blade, the top of knife leaf is equipped with plagiohedral blade, the inside of knife leaf two sides offers mounting hole, two mounting holes are equidistant with the two sides of blade respectively, it is in rotate clockwise the sawtooth in direction, and the direction of rotation of sawtooth is parallel with the cut surface of blade that the cut end of blade, which offers several, and the tooth tip of sawtooth is arc shape.A kind of crushing knife of the utility model, the distance of stretch out and draw back between cutter and rotary shaft can be adjusted according to the shape size that need to crush object by the mounting hole of oval hole shape, by high speed mould steel binding face at blade, increase the wearability of blade, improve the sharpness of blade, at low cost, the scope of application is wider.

Description

A kind of crushing knife

Technical field

The utility model relates to a kind of cutter, in particular to a kind of crushing knife belongs to environmental protection machinery technical field.

Background technique

Crushing knife is to be widely used in life and mechanical engineering to a kind of cutter that need to be crushed object and carry out being cut into clast In industry, common defect are as follows:

(1) shape of blade will affect the efficiency of crushing, and crushing effect is poor；

(2) for crushing knife when carrying out cutting and grinding to object, smashed clast easily blocks the circulation port for making crushing knife tool, Influence the working efficiency of crushing knife；

(3) need to carry out the replacement of different crushing knifes for different articles, it is troublesome in poeration；

(4) single blade causes crushing effect bad, cannot good dispersion and fining；

(5) installation site of cutter is fixed, cannot according to the distance of stretch out and draw back between the shape adjustment cutter and shaft of object, Using with limitation；

(6) crushing knife be easy to cause the abrasion of blade using the time when longer, to replace entire powder after single edge wear Broken knife, use cost increase；

(7) crushing knife dismounting trouble, it is inconvenient to use.

Utility model content

The purpose of this utility model is to provide a kind of crushing knifes, to solve the cost of charp tool mentioned above in the background art The problem of height, toughness and wearability are poor, cannot arbitrarily adjust the distance of stretch out and draw back of cutter.

To achieve the above object, the utility model provides the following technical solutions: a kind of crushing knife, including knife leaf and blade, The top of the knife leaf is equipped with plagiohedral blade, and the inside of knife leaf two sides offers mounting hole, two mounting holes It being equidistant respectively with the two sides of blade, it is in the sawtooth for rotating clockwise direction that the cut end of the blade, which offers several, And the direction of rotation of sawtooth is parallel with the cut surface of blade, the tooth tip of the sawtooth is arc shape.

As a kind of optimal technical scheme of the utility model, two mounting holes are oval hole shape.

As a kind of optimal technical scheme of the utility model, it is convex that the inner wall of two mounting holes offers several It rises.

As a kind of optimal technical scheme of the utility model, the junction of two adjacent sawtooth is opened up as tooth Slot, and the cell wall of tooth socket is smooth concave surface.

As a kind of optimal technical scheme of the utility model, the material of the knife leaf and blade is SKD material.

Compared with prior art, the utility model has the beneficial effects that a kind of crushing knife of the utility model, passes through slotted hole The mounting hole of shape, can be according to the big minor adjustment crushing knife of object at a distance from rotary shaft, and application range is wider, and two Mounting hole is equidistant with knife leaf two sides, can keep balance when Cutting tool installation manner, prevents cutter during crushing object Run-off the straight influences the use of crushing knife；The protrusion installed by inner wall of the hole installing increases the frictional force when installation of knife leaf, mentions The stability of high crushing knife；It can reduce the frictional force that clast is contacted with tooth socket by the tooth socket in smooth concave surface, clast made to exist It can normally fall off after crushing, prevent crushing knife when crushing object, clast is jumped the queue between two sawtooth, and crushing knife is influenced Normal use；Knife leaf and blade made of SKD material increase the abrasion resistance and hardness of crushing knife, pass through high speed mould steel Binding face at blade increase blade sharpness, improve the working efficiency of crushing knife, extend the service life of crushing knife.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the side structure schematic diagram of the utility model；

Fig. 3 is the mounting hole schematic diagram of internal structure of the utility model；

Fig. 4 is the partial structural diagram of the utility model.

In figure: 1, knife leaf；2, blade；3, mounting hole；4, raised；5, sawtooth；6, tooth socket.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-4 is please referred to, the utility model provides a kind of crushing knife, including knife leaf 1 and blade 2, the top of knife leaf 1 are set Have a plagiohedral blade 2, the inside of 1 two sides of knife leaf offers mounting hole 3, two mounting holes 3 respectively with two lateral extents of blade 2 Equal, it is in rotate clockwise the sawtooth 5 in direction, and the direction of rotation of sawtooth 5 and blade that the cut end of blade 2, which offers several, 2 cut surface is parallel, and the tooth tip of sawtooth 5 is arc shape.

Preferably, two mounting holes 3 are oval hole shape, convenient for adjusting the distance of stretch out and draw back between knife leaf 1 and rotary shaft.

Preferably, the inner wall of two mounting holes 3 offers several protrusions 4, increases the friction between knife leaf 1 and installation part Power increases the stability of crushing knife with this.

Preferably, the junction of two adjacent sawtooth 5 opens up as tooth socket 6, and the cell wall of tooth socket 6 is smooth concave surface, It prevents smashed clast from jumping the queue in tooth socket 6, influences normal use when blade 2 works.

Preferably, the material of knife leaf 1 and blade 2 is SKD material, increases the wearability and sharpness of blade 2.

When specifically used, a kind of crushing knife of the utility model adjusts installation connecting element and exists according to the size that need to crush object Knife leaf 1 is mounted on power mechanism by the position in mounting hole 3 by mounting hole 3, realizes the positioning and installation of knife leaf 1, then It is driven by a power mechanism crushing knife to work, the sawtooth 5 that 2 cut surface of blade opens up carries out crushing cutting, sawtooth to object 5 pairs of blades 2 play buffer function, if while sawtooth 5 occur a Broken condition when cutting object, other sawtooth 5 still may be used Normally to cut to object, the normal work of crushing knife will not influence, smashed clast will be fallen into collection device, when Be not in the situation that clast is jumped the queue since the concave surface slickness of tooth socket 6 is preferable when clast is by between two sawtooth 5, improve The working efficiency of crushing knife, knife leaf 1 and blade 2 are made of SKD material, have high wearability and toughness, and hardness can reach 61HRC, it is not easy to crack, the service life of crushing knife is improved, while blade 2 is bonded using high speed mould steel, wearability is high, With very strong sharpness, and economic cost is lower, is suitble to promote the use of.

In the description of the present invention, it should be understood that term " coaxial ", " bottom ", " one end ", " top ", " in The orientation of the instructions such as portion ", " other end ", "upper", " side ", " top ", "inner", " front ", " center ", " both ends " or position are closed System is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing the present invention and simplifying the description, rather than The device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot It is construed as a limitation of the present invention.

In addition, term " first ", " second ", " third ", " the 4th " are used for description purposes only, and should not be understood as instruction or It implies relative importance or implicitly indicates the quantity of indicated technical characteristic, define " first ", " second ", " the as a result, Three ", the feature of " the 4th " can explicitly or implicitly include at least one of the features.

In the present invention unless specifically defined or limited otherwise, term " installation ", " setting ", " connection ", " Gu Calmly ", the terms such as " being screwed on " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral； It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also indirectly connected through an intermediary, it can be with It is the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly, for this field For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (5)

1. a kind of crushing knife, including knife leaf (1) and blade (2), which is characterized in that the top of the knife leaf (1) is equipped with plagiohedral The inside of blade (2), knife leaf (1) two sides offers mounting hole (3), two mounting holes (3) respectively with blade (2) Two sides be equidistant, it is in rotate clockwise the sawtooth (5) in direction, and saw that the cut end of the blade (2), which offers several, The direction of rotation of tooth (5) is parallel with the cut surface of blade (2), and the tooth tip of the sawtooth (5) is arc shape.

2. a kind of crushing knife according to claim 1, it is characterised in that: two mounting holes (3) are slotted hole shape Shape.

3. a kind of crushing knife according to claim 1, it is characterised in that: the inner wall of two mounting holes (3) offers Several raised (4).

4. a kind of crushing knife according to claim 1, it is characterised in that: the junction of the sawtooth (5) of adjacent two It opens up as tooth socket (6), and the cell wall of tooth socket (6) is smooth concave surface.

5. a kind of crushing knife according to claim 1, it is characterised in that: the material of the knife leaf (1) and blade (2) is SKD material.