CN115475819A - Double-cutter head type garbage crushing cutter - Google Patents

Abstract

The invention discloses a double-cutter-head type garbage crushing cutter which comprises an inner cutter disc and an outer cutter ring sleeved outside the inner cutter disc, wherein a cutting groove with a triangular cross section is formed in the outer circle of the inner cutter disc along the circumferential direction, the inner circle of the outer cutter ring is matched with the cutting groove, a grinding cavity is formed by the upper inclined surface of the cutting groove and the upper inclined surface of a cutting protrusion in a surrounding mode, a cutting cavity is formed by the lower inclined surface of the cutting groove and the lower inclined surface of the cutting protrusion in a surrounding mode, a grinding block assembly is arranged in the grinding cavity, and a cutting cutter assembly is arranged in the cutting cavity. The crushing cutter is beneficial to crushing plastic bags, rubber or other garbage pieces with high toughness, firstly, the garbage is rubbed and damaged by the grinding assembly in the grinding cavity to form a plurality of weak links at local parts, then, the garbage is cut, torn and crushed by the crushing cutter assembly in the crushing cavity, the garbage is favorably broken and divided into small block-shaped structures from the weak parts, the phenomenon that the cutter head is stuck or wound can be effectively improved, and the crushing efficiency is favorably improved.

Description

Double blade garbage shredding knife

technical field

The invention relates to the technical field of garbage disposal, in particular to a double-blade garbage shredding knife.

Background technique

Some of the garbage in daily life is relatively large. If you directly fill the large garbage, the transportation cost and landfill cost will be high. After that, usually the volume can be reduced by 30% to 50%, which is beneficial to the subsequent garbage processing;

The cutter head of the existing garbage crusher is usually a single-knife structure. This kind of cutter head is only suitable for easy-cut garbage materials. Once the toughness of the garbage is strong, this type of cutter head is easy to wind and get stuck;

Contents of the invention

In view of this, the present invention provides a double-cutter-head rubbish crushing knife. The crushing knife is composed of double-cutter heads. A grinding chamber and a crushing chamber are formed between the double-cutter heads. First, the rubbish is ground through the grinding chamber to form multiple weak link, and then through the crushing cavity, the garbage is broken, and the garbage is broken into small pieces from its weak point, which is conducive to improving the crushing efficiency and improving the phenomenon that the cutter head is stuck or entangled.

The double-cutter-head rubbish crushing knife of the present invention comprises an inner cutter head and an outer cutter ring outside the inner cutter head; The inner circle of the knife ring is a triangular cutting protrusion adapted to the cutting groove, the upper slope of the cutting groove and the upper slope of the cutting protrusion are enclosed to form a grinding cavity, the lower slope of the cutting groove and the cutting protrusion A cutting cavity is enclosed between the lower slopes, and the grinding cavity is connected with the cutting cavity. The upper and lower walls of the grinding cavity are provided with grinding block assemblies that cooperate with each other for grinding garbage, and the upper and lower walls of the cutting cavity are provided with There is a cutter assembly for cutting garbage.

Further, the grinding block assembly includes an upper grinding block arranged on the upper slope of the cutting groove and a lower grinding block arranged on the upper slope of the cutting protrusion, the upper grinding blocks and the lower grinding blocks are arranged alternately in the direction of the grinding chamber, the The upper grinding block and the lower grinding block are provided with fine grinding slopes, and the two fine grinding slopes are relatively parallel and enclose to form an obliquely downward grinding channel.

Further, the cutting knife assembly includes a pair of horizontal cutting knives and a pair of vertical cutting knives, the horizontal cutting knives and the vertical cutting knives are aligned in the direction of the cutting cavity, and the pair of horizontal cutting knives are respectively horizontally connected to the cutting groove The pair of horizontal cutting knives are arranged at intervals in the horizontal direction and partially overlap in the projection direction of the cutting cavity, and the pair of vertical cutting knives are vertically connected to the lower slope of the cutting groove and the cutting groove respectively. On the lower slope of the protrusion, the pair of vertical cutting knives are arranged at intervals in the horizontal direction and partially coincide with projections in the cutting cavity direction.

Further, the upper grinding block and the lower grinding block are provided with rough grinding slopes, and the two rough grinding slopes are arranged parallel to each other.

Further, the upper slope of the cutting groove is connected with the lower slope of the cutting groove through the vertical surface of the cutting groove, and the upper slope of the cutting protrusion is connected with the lower slope of the cutting protrusion through the vertical surface of the cutting protrusion. A transition cavity is enclosed between the cutting groove facade and the cutting protrusion facade, and a spiral cutter is arranged on the cutting groove facade.

Further, two groups of grinding block assemblies are arranged along the direction of the grinding chamber, and the grinding channel formed by the grinding block assembly at the front side has a width smaller than that of the grinding channel formed by the grinding assembly at the rear side.

Further, a stirring rod for loosening the garbage entering from the grinding chamber is provided in the transition chamber, and the stirring rod is located above the spiral cutter.

Further, the cavity at the outer port of the grinding chamber is a flared cavity that gradually expands outwards to form a feed inlet, and a helical blade is fixedly connected to the inner cutter head, and the helical blade is located at the feed inlet for The garbage is transported from the feed port to the grinding chamber.

Further, a stirring rod assembly is arranged between the two groups of grinding blocks, and the stirring rod assembly includes an upward stirring rod connected to the upper inclined surface of the inner cutter head and a downward stirring rod connected to the upper inclined surface of the outer knife ring pole.

Beneficial effects of the present invention:

The crushing knife of the present invention is beneficial for crushing such as plastic bags, rubber or other tough garbage pieces. First, the rubbish is rubbed and damaged by the grinding assembly in the grinding chamber to form multiple weak links locally, and then passes through the crushing knife assembly in the crushing chamber. Cutting, tearing and shredding the garbage can help the garbage to be broken into small pieces from its weak points, which can effectively improve the phenomenon that the cutter head is stuck or entangled, and is beneficial to improve the crushing efficiency.

In the present invention, by setting horizontal cutting knives and vertical cutting knives, the garbage can smoothly pass through the vertical channels between the cutting knife groups, preventing the garbage from staying and the knives from being stuck, and at the same time ensuring that the garbage is kept in the cutting chamber It is efficiently cut and crushed by two vertical cutting knives during operation, ensuring better cutting effect and high cutting efficiency.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a partial structure schematic diagram 1;

Fig. 3 is a partial structure schematic diagram 2;

FIG. 4 is a schematic diagram of a partially enlarged structure of FIG. 2;

detailed description

As shown in the figure, this embodiment provides a double-cutter-head rubbish crushing knife, which includes an inner cutter head 1 and an outer cutter ring 2 outside the inner cutter head. The section is a triangular cutting groove, the inner circle of the outer knife ring is a triangular cutting protrusion adapted to the cutting groove, and the upper slope 1a of the cutting groove and the upper slope 2a of the cutting protrusion are enclosed to form a grinding chamber 3. The lower slope 1b of the cutting groove and the lower slope 2b of the cutting protrusion are enclosed to form a cutting cavity 4, the grinding cavity and the cutting cavity are connected, and the upper and lower walls of the grinding cavity are provided with a A grinding block assembly for grinding rubbish, the upper and lower walls of the cutting cavity are provided with a cutting knife assembly for cutting rubbish.

Here, the upper and lower walls of the grinding cavity refer to the upper slope 1a of the cutting groove and the upper slope 2a of the cutting protrusion, and the upper and lower walls of the cutting cavity refer to the lower slope 1b of the cutting groove and the lower slope of the cutting protrusion 2b, the up and down direction in this embodiment corresponds to the up and down direction in Figure 1, therefore, there is no objection to the references of the upper slope and the lower slope corresponding to Figure 1;

Wherein the inner cutter head has a central hole, the inner cutter head is in transmission cooperation with the drive shaft 19, and the outer cutter ring is fixedly mounted on the casing 20, and the outer cutter ring can be formed by welding two halves to facilitate assembly with the inner cutter head; The drive shaft drives the inner knife disc to rotate relative to the outer knife ring, and then grinds the garbage through the grinding block assembly, and cuts the ground garbage into pieces through the cutting knife assembly;

The upper slope 1a of the cutting groove is parallel to the upper slope 2a of the cutting protrusion, and the lower slope 1b of the cutting groove is parallel to the lower slope 2b of the cutting protrusion. It is a conical ring-shaped cavity with a small top and a large bottom, so the grinding cavity extends obliquely downward to the inside, and the cutting cavity extends obliquely downward to the outside, which is conducive to the automatic downward transportation of garbage to perform the grinding, cutting and crushing processes in sequence;

Moreover, the grinding cavity and the cutting cavity form a bent cavity path, which is beneficial to the spatial layout of the grinding assembly and the cutting knife assembly;

The crushing knife of this structure is good for crushing plastic bags, rubber or other tough garbage pieces. First, the rubbish is broken by the grinding assembly in the grinding chamber, forming multiple weak links locally, and then passes through the crushing knife in the crushing chamber. The components cut, tear and shred the garbage, which is conducive to breaking and dividing the garbage into small pieces from its weak points, which can effectively improve the phenomenon that the cutter head is stuck or entangled, and is beneficial to improve the crushing efficiency.

In this embodiment, the grinding block assembly includes an upper grinding block 5 arranged on the upper inclined surface 2a of the cutting groove and a lower grinding block 6 arranged on the upper inclined surface 1a of the cutting protrusion. The direction of direction is staggered, and the upper grinding block 5 and the lower grinding block 6 are provided with a fine grinding slope 7, and the two fine grinding slopes are relatively parallel to each other and enclose an obliquely downward grinding channel 8.

The direction of grinding chamber 3 is consistent with the inclined direction of the upper inclined surface 1a of the cutting groove and the inclined direction of the upper inclined surface 2a of the cutting protrusion; the direction of the corresponding cutting chamber 4 is consistent with the inclined direction of the lower inclined surface 1b of the cutting groove and the lower inclined surface 2b of the cutting protrusion; The opposite of the two fine grinding slopes means that they are opposite in the direction of the grinding chamber;

As shown in Figure 4, the upper grinding block and the lower grinding block are ring-shaped blocks, and the grinding channel is a channel extending obliquely downward. Excellent grinding effect, the roughness of the fine grinding surface can be adjusted according to actual needs, and this structure is beneficial to form a good grinding effect on garbage;

In the present embodiment, the cutting knife assembly includes a pair of horizontal cutting knives 10 and a pair of vertical cutting knives 11, the horizontal cutting knives 10 and the vertical cutting knives 11 are arranged in the direction of cutting chamber 4, the pair of horizontal cutting knives The cutting knives are respectively horizontally connected to the lower slope 1b of the cutting groove and the lower slope 2b of the cutting protrusion. The pair of horizontal cutting knives are arranged at intervals in the horizontal direction and partially overlap in the projection direction of the cutting cavity. The pair of vertical cutting knives are vertically vertical respectively. On the lower inclined surface 1b connected to the cutting groove and the lower inclined surface 2b of the cutting protrusion, the pair of vertical cutting knives are arranged at intervals in the horizontal direction and overlap partially in the projection direction of the cutting cavity.

A blunt cutter 21 is arranged between the horizontal cutter 10 and the vertical cutter 11. The blunt cutter is fixed on the lower inclined surface of the inner cutter head in a ring structure. The blunt cutter is in a semicircular cross-section. Turn over the garbage accurately, which is conducive to cutting the garbage in an all-round way;

Both the horizontal cutting knife 10 and the vertical cutting knife 11 are annular structures circumferentially surrounding the corresponding inclined surfaces of the inner cutter head or the outer cutter ring;

As shown in Figure 3, the horizontal cutting knife 10 extends horizontally, and the two horizontal cutting knives are arranged alternately up and down, and the horizontal cutting knives are arranged at intervals in the horizontal direction so that the two horizontal cutting knives do not cross the vertical line a, that is, two horizontal cutting knives There is a vertical channel between the knives. In addition, the projection of the horizontal cutting knives overlaps in the direction of the cutting cavity. According to the figure, the two horizontal cutting knives intersect with the line b, so that the garbage can pass through the vertical passage between the two horizontal cutting knives. Pass through the channel smoothly, and at the same time, it is efficiently cut and broken by two horizontal cutting knives when running in the direction of the cutting chamber;

As shown in FIG. 3 , the vertical cutting knife 11 extends vertically, and the two vertical cutting knives 11 are arranged at intervals in the horizontal direction, so that the two vertical cutting knives 11 do not cross the line c, that is, the two vertical cutting knives There is a vertical channel between 11, and the two vertical cutting knives 11 are partially overlapped in the projection along the direction of the cutting cavity. Seen in conjunction with the figure, the two vertical cutting knives intersect with the line b, so that the garbage can be separated in two vertical directions. The vertical channel between the cutting knives passes smoothly, and at the same time, it is efficiently cut and broken by the two vertical cutting knives when the cutting chamber is running;

In this embodiment, the upper grinding block 5 and the lower grinding block 6 are provided with rough grinding slopes 9, and the two rough grinding slopes are opposite to each other and arranged in parallel.

The two rough grinding slopes facing each other means that the direction of the grinding chamber is opposite to each other. As shown in Figure 4, larger grinding particles are set on the rough grinding surface. When the garbage moves from top to bottom in the grinding chamber, it first passes through the bottom The coarse grinding surface of the grinding block grinds the bottom of the garbage, and then finely grinds through the grinding channel, and finally grinds the top of the garbage through the coarse grinding surface of the upper grinding block, combined with the cooperation of the coarse grinding surface and the fine grinding surface, it is beneficial to Garbage forms all-round grinding, which is conducive to forming more weak links on the garbage, which is convenient for subsequent cutting, and can further improve the phenomenon that the cutting knife is entangled and stuck, and improve cutting efficiency.

In this embodiment, the upper slope 1a of the cutting groove and the lower slope 1b of the cutting groove are connected by the cutting groove elevation 1c, and the upper slope 2a of the cutting protrusion and the lower slope 2b of the cutting protrusion are connected by The cutting convex facade 2c is connected, and the transition cavity 12 is enclosed between the cutting groove facade 1c and the cutting convex facade 2c, and a spiral cutter 13 is arranged on the cutting groove facade.

As described in conjunction with Fig. 1, since the cutting groove and the cutting protrusion are all annular structures, the cutting groove elevation 1c and the cutting protrusion elevation 2c are all annular surfaces, and the width of the transition chamber is greater than the width of the grinding chamber, so that The garbage that enters the transition chamber from the grinding chamber is loosened, wherein the spiral cutter 13 surrounds the cutting groove elevation 1c in a circumferential direction, the outer edge of the spiral cutter is a blade, and the spiral cutter is used to cut the garbage in the transition chamber. And the garbage in the transition cavity can be conveyed downward, so that the garbage in the transition cavity is forcibly transported into the cutting cavity.

In this embodiment, two groups of grinding block assemblies are arranged along the direction of the grinding chamber 3 , and the width of the grinding channel formed by the grinding block assembly located at the front side is smaller than the width of the grinding channel formed by the grinding assembly located at the rear side.

The front side refers to the direction along which the rubbish travels, corresponding to the obliquely downward direction of the grinding chamber in Fig. Large frictional pressure on the garbage improves the grinding effect and is beneficial to the full grinding of the garbage.

In this embodiment, the transition chamber 12 is provided with a stirring rod 14 for loosening the garbage entering from the grinding chamber, and the stirring rod is located above the spiral cutter.

As shown in FIG. 4 , there are multiple stirring rods arranged circumferentially around the inner wall of the transition chamber. The stirring rods are used to stir up the garbage, loosen the garbage squeezed through the grinding chamber, and facilitate the subsequent cutting of garbage.

In this embodiment, the cavity at the outer port of the grinding chamber 3 is a flared cavity that gradually expands outwards to form a feed port 15, and a helical blade 16 is fixedly connected to the inner cutter head, and the helical blade is located at The feed port is used to transport the garbage from the feed port to the grinding chamber.

As shown in Figure 1 and Figure 2, the outer diameter of the spiral blade 16 gradually increases from bottom to top to adapt to the change of the chamber at the feed inlet, and the waste can be forcibly transported into the grinding chamber through the spiral blade. A discharge port 22 is also provided at the bottom of the cavity, and the discharge port is in the shape of an opening that expands outwards.

In this embodiment, a stirring rod assembly is arranged between the two groups of grinding blocks, and the stirring rod assembly includes an upward stirring rod 17 connected to the upper inclined surface of the inner cutter head and an upper inclined surface connected to the outer knife ring Stirrer bar 18 is turned down.

As shown in Figure 2, there are multiple upturning stirring rods and downturning stirring rods arranged circumferentially around the corresponding inclined surfaces. All-round grinding improves the grinding effect.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present invention without limitation. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be carried out Modifications or equivalent replacements without departing from the spirit and scope of the technical solution of the present invention shall be covered by the claims of the present invention.

Claims (9)

1. The utility model provides a broken sword of double-cutter head formula rubbish which characterized in that: including interior blade disc and overcoat outer cutter ring outside interior blade disc, interior blade disc excircle is seted up the cutting groove that the cross-section is three horn shapes along circumference, the circle is protruding with the three horn shapes cutting of cutting groove adaptation in the outer cutter ring, it grinds the chamber to enclose between the last inclined plane of cutting groove and the bellied upward inclined plane of cutting, it cuts the chamber to enclose between the lower inclined plane of cutting groove and the bellied lower inclined plane of cutting, it has a perfect understanding with the cutting chamber to grind the chamber, it uses the abrasive brick subassembly that is used for grinding rubbish to be provided with mutually supporting on the last lower wall in chamber to grind, be provided with the cutting knife subassembly that is used for rubbish cutting on the last lower wall in cutting chamber.

2. The dual head garbage crushing cutter of claim 1, wherein: the grinding block assembly comprises an upper grinding block arranged on an upper inclined plane of the cutting groove and a lower grinding block arranged on an upper inclined plane of the cutting protrusion, the upper grinding block and the lower grinding block are arranged in a staggered mode in the direction of the trend of the grinding cavity, fine grinding inclined planes are arranged on the upper grinding block and the lower grinding block, and the two fine grinding inclined planes are arranged in parallel relatively and enclose a grinding channel in a downward inclined mode.

3. The dual head garbage crushing cutter of claim 1, wherein: the cutting knife subassembly includes a pair of horizontal cutting knife and a pair of vertical cutting knife, horizontal cutting knife and vertical cutting knife are arranged in cutting chamber trend direction and are set up, should be to horizontal cutting knife difference horizontal connection on the lower inclined plane of cutting groove and the lower inclined plane of cutting arch, should set up and move towards the direction projection part coincidence at the cutting chamber to horizontal cutting knife at the horizontal direction interval, should be to vertical cutting knife vertical connection respectively on the lower inclined plane of cutting groove and the lower inclined plane of cutting arch, should move towards the direction projection part coincidence at the cutting chamber to vertical cutting knife at the horizontal direction interval setting.

4. The dual head garbage crushing cutter of claim 2, wherein: the upper grinding block and the lower grinding block are provided with rough grinding inclined planes which are arranged in parallel in an opposite mode.

5. The dual head garbage crushing cutter of claim 1, wherein: the upper inclined plane of the cutting groove is connected with the lower inclined plane of the cutting groove through a cutting groove vertical plane, the upper inclined plane of the cutting protrusion is connected with the lower inclined plane of the cutting protrusion through a cutting protrusion vertical plane, a transition cavity is formed by the cutting groove vertical plane and the cutting protrusion vertical plane in a surrounding mode, and a spiral cutter is arranged on the cutting groove vertical plane.

6. The dual head garbage crushing cutter of claim 4, wherein: the grinding block assemblies are arranged in two groups along the direction of the grinding cavity, and the width of a grinding channel formed by the grinding block assemblies positioned on the front side is smaller than that of a grinding channel formed by the grinding assemblies positioned on the rear side.

7. The dual head garbage crushing cutter of claim 5, wherein: the transition intracavity is provided with the stirring rod that is used for turning over the pine to the rubbish that gets into by grinding the intracavity, the stirring rod is located the spiral cutter top.

8. The dual head garbage crushing cutter of claim 1, wherein: the cavity of grinding the outer port department in chamber is the mouth that expands that outwards enlarges gradually in order to form the feed inlet, fixedly connected with helical blade on the interior blade disc, helical blade is located feed inlet department and is used for carrying rubbish to grinding the intracavity by the feed inlet.

9. The dual head garbage crushing cutter of claim 6, wherein: and a stirring rod assembly is arranged between the two groups of grinding blocks and comprises an upper stirring rod connected to the upper inclined surface of the inner cutter head and a lower stirring rod connected to the upper inclined surface of the outer cutter ring.

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