Double-head garbage crusher

Abstract

The present invention discloses a double-blade type garbage crushing knife, comprising an inner blade disc and an outer blade ring which is arranged outside the inner blade disc, the outer circle of the inner blade disc is provided with a cutting groove with a triangular cross section along the circumferential direction, the inner circle of the outer blade ring is adapted to the cutting groove, the upper inclined surface of the cutting groove and the upper inclined surface of the cutting protrusion are combined to form a grinding cavity, the lower inclined surface of the cutting groove and the lower inclined surface of the cutting protrusion are combined to form a cutting cavity, a grinding block assembly is arranged in the grinding cavity, and a cutting knife assembly is arranged in the cutting cavity. The crushing knife of the present invention is conducive to crushing garbage pieces such as plastic bags, rubber or other pieces with high toughness. First, the garbage is rubbed and damaged by the grinding assembly in the grinding cavity to form multiple weak links locally, and then the garbage is cut, torn and crushed by the crushing knife assembly in the crushing cavity, which is conducive to breaking the garbage from its weak points into small block structures, which can effectively improve the phenomenon of the blade head being stuck or entangled, and is conducive to improving the crushing efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of garbage disposal, and in particular to a double-blade type garbage crushing knife. Background Art

[0002] Some garbage in our daily life is large in volume. If the large garbage is directly landfilled, the transportation cost and landfill cost will be high. Therefore, in the garbage treatment process, it is usually necessary to crush the garbage and then proceed to the next treatment process. After the garbage is crushed, the volume can usually be reduced by 30% to 50%, which is conducive to the subsequent garbage process treatment;

[0003] The existing garbage crusher blade is usually a single blade structure, which is only suitable for easy-to-cut garbage materials. Once the garbage is tough, this type of blade is easy to get tangled and stuck; Summary of the invention

[0004] In view of this, the present invention provides a double-blade head garbage crushing knife, which is composed of double blade heads, and a grinding chamber and a crushing chamber are formed between the double blade heads. The garbage is first ground into multiple weak links in the grinding chamber, and then the garbage is crushed through the crushing chamber, and the garbage is broken and divided into small pieces from its weak points, which is beneficial to improving the crushing efficiency and improving the phenomenon of blade head getting stuck or entangled.

[0005] The double-blade head garbage crushing knife of the present invention comprises an inner knife disc and an outer knife ring arranged outside the inner knife disc, the outer circle of the inner knife disc is provided with a cutting groove with a triangular cross-section along the circumferential direction, the inner circle of the outer knife ring is provided with a triangular cutting protrusion adapted to the cutting groove, the upper inclined surface of the cutting groove and the upper inclined surface of the cutting protrusion together form a grinding cavity, the lower inclined surface of the cutting groove and the lower inclined surface of the cutting protrusion together form a cutting cavity, the grinding cavity and the cutting cavity are connected, the upper and lower walls of the grinding cavity are provided with grinding block assemblies which cooperate with each other for grinding garbage, and the upper and lower walls of the cutting cavity are provided with cutting knife assemblies for cutting garbage.

[0006] Furthermore, the grinding block assembly includes an upper grinding block arranged on the upper inclined surface of the cutting groove and a lower grinding block arranged on the upper inclined surface of the cutting protrusion. The upper grinding block and the lower grinding block are staggered in the direction of the grinding chamber. Fine grinding inclined surfaces are provided on the upper grinding block and the lower grinding block. The two fine grinding inclined surfaces are arranged relatively parallel and enclose a grinding channel inclined downward.

[0007] Furthermore, the cutting knife assembly includes a pair of horizontal cutting knives and a pair of vertical cutting knives, and the horizontal cutting knives and the vertical cutting knives are arranged in the direction of the cutting cavity. The pair of horizontal cutting knives are horizontally connected to the lower inclined surface of the cutting groove and the lower inclined surface of the cutting protrusion, respectively. The pair of horizontal cutting knives are arranged at intervals in the horizontal direction and their projections in the direction of the cutting cavity partially overlap. The pair of vertical cutting knives are vertically connected to the lower inclined surface of the cutting groove and the lower inclined surface of the cutting protrusion, respectively. The pair of vertical cutting knives are arranged at intervals in the horizontal direction and their projections in the direction of the cutting cavity partially overlap.

[0008] Furthermore, the upper grinding block and the lower grinding block are provided with coarse grinding inclined surfaces, and the two coarse grinding inclined surfaces are arranged in parallel and opposite to each other.

[0009] Furthermore, the upper inclined surface of the cutting groove and the lower inclined surface of the cutting groove are connected by a cutting groove vertical surface, the upper inclined surface of the cutting protrusion and the lower inclined surface of the cutting protrusion are connected by a cutting protrusion vertical surface, the cutting groove vertical surface and the cutting protrusion vertical surface enclose a transition cavity, and a spiral cutter is arranged on the cutting groove vertical surface.

[0010] Furthermore, two groups of the grinding block assemblies are arranged along the direction of the grinding chamber, and the width of the grinding channel formed by the grinding block assemblies located at the front side is smaller than the width of the grinding channel formed by the grinding assemblies located at the rear side.

[0011] Furthermore, a stirring rod for loosening the garbage entering from the grinding chamber is arranged in the transition chamber, and the stirring rod is located above the spiral cutter.

[0012] Furthermore, the cavity at the outer port of the grinding chamber is an expansion cavity that gradually expands outward to form a feed port, and a spiral blade is fixedly connected to the inner cutter disc. The spiral blade is located at the feed port and is used to transport garbage from the feed port to the grinding chamber.

[0013] Furthermore, a stirring rod assembly is arranged between the two groups of grinding blocks, and the stirring rod assembly includes an upper stirring rod connected to the upper inclined surface of the inner knife disc and a lower stirring rod connected to the upper inclined surface of the outer knife ring.

[0014] Beneficial effects of the present invention:

[0015] The crushing knife of the present invention is beneficial for crushing plastic bags, rubber or other garbage pieces with relatively high toughness. First, the grinding component in the grinding chamber rubs and breaks the garbage to form multiple weak links locally, and then the crushing knife component in the crushing chamber cuts, tears and crushes the garbage, which is beneficial for breaking and dividing the garbage from its weak points into small block structures, which can effectively improve the phenomenon of the knife head being stuck or entangled, and is beneficial for improving the crushing efficiency.

[0016] In the present invention, by arranging horizontal cutting knives and vertical cutting knives, garbage can pass through the vertical channels between the cutting knife groups smoothly, preventing garbage from being trapped and the knives from being stuck. At the same time, it also ensures that the garbage is efficiently cut and crushed by the two vertical cutting knives when running in the cutting chamber, ensuring a better cutting effect and high cutting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 For local structure Figure 1 ;

[0020] Figure 3 For local structure Figure 2 ;

[0021] Figure 4 for Figure 2 A schematic diagram of a local enlarged structure; DETAILED DESCRIPTION

[0022] As shown in the figure, this embodiment provides a double-blade garbage crushing knife, including an inner blade disc 1 and an outer blade ring 2 arranged outside the inner blade disc, the outer circle of the inner blade disc is circumferentially provided with a cutting groove with a triangular cross-section, the inner circle of the outer blade ring is provided with a triangular cutting protrusion adapted to the cutting groove, the upper inclined surface 1a of the cutting groove and the upper inclined surface 2a of the cutting protrusion together form a grinding cavity 3, the lower inclined surface 1b of the cutting groove and the lower inclined surface 2b of the cutting protrusion together form a cutting cavity 4, the grinding cavity and the cutting cavity are connected, 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 cutting knife assemblies for cutting garbage.

[0023] Here, the upper and lower walls of the grinding cavity refer to the upper bevel 1a of the cutting groove and the upper bevel 2a of the cutting protrusion, and the upper and lower walls of the cutting cavity refer to the lower bevel 1b of the cutting groove and the lower bevel 2b of the cutting protrusion. Figure 1 The up and down directions in correspond to each other, so the reference of the upper slope and the lower slope corresponds to Figure 1 There is no objection;

[0024] The inner cutter disc has a central hole, the inner cutter disc is in transmission cooperation with the drive shaft 19, the outer cutter ring is fixedly mounted on the housing 20, and the outer cutter ring can be formed by welding two halves to facilitate assembly with the inner cutter disc; the inner cutter disc is driven by the drive shaft to rotate relative to the outer cutter ring, and then the garbage is ground by the grinding block assembly, and the ground garbage is cut into blocks by the cutting knife assembly;

[0025] The upper bevel 1a of the cutting groove is parallel to the upper bevel 2a of the cutting protrusion, and the lower bevel 1b of the cutting groove is parallel to the lower bevel 2b of the cutting protrusion. The grinding chamber is a conical annular cavity with a large upper portion and a small lower portion, and the cutting chamber is a conical annular cavity with a small upper portion and a large lower portion. Therefore, the grinding chamber extends obliquely downward inward, and the cutting chamber extends obliquely downward outward, which is conducive to the automatic downward transportation of garbage to perform the grinding and cutting crushing processes in sequence.

[0026] Moreover, the grinding chamber and the cutting chamber form a curved cavity path, which is beneficial to the spatial layout of the grinding assembly and the cutting blade assembly;

[0027] The crushing knife of this structure is conducive to crushing plastic bags, rubber or other tough garbage pieces. First, the grinding component in the grinding chamber rubs and breaks the garbage, forming multiple weak links locally, and then the crushing knife component in the crushing chamber cuts, tears and crushes the garbage, which is conducive to breaking and dividing the garbage from its weak points into small pieces. It can effectively improve the phenomenon of the knife head being stuck or entangled, and is conducive to improving the crushing efficiency.

[0028] In this embodiment, the grinding block assembly includes an upper grinding block 5 arranged on the upper inclined surface 1a of the cutting groove and a lower grinding block 6 arranged on the upper inclined surface 1b of the cutting protrusion. The upper grinding block and the lower grinding block are staggered in the direction of the grinding chamber. The upper grinding block 5 and the lower grinding block 6 are provided with fine grinding inclined surfaces 7. The two fine grinding inclined surfaces are arranged relatively parallel and enclose a grinding channel 8 inclined downward.

[0029] The direction of the grinding chamber 3 is consistent with the inclination direction of the upper bevel 1a of the cutting groove and the upper bevel 2a of the cutting protrusion; the direction of the corresponding cutting chamber 4 is consistent with the inclination direction of the lower bevel 1b of the cutting groove and the lower bevel 2b of the cutting protrusion; the two fine grinding bevels are opposite to each other in the direction of the grinding chamber;

[0030] Combination Figure 4 As shown, the upper grinding block and the lower grinding block are both annular blocks, and the grinding channel is a channel extending obliquely downward. The width of the channel is smaller than the width of the grinding chamber, so that the garbage is squeezed when passing through the grinding channel to form a good grinding effect. The roughness of the fine grinding surface can be adjusted according to actual needs. This structure is conducive to forming a good grinding effect on the garbage;

[0031] In this 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 the cutting chamber 4. The pair of horizontal cutting knives are horizontally connected to the lower inclined surface 1b of the cutting groove and the lower inclined surface 2b of the cutting protrusion, respectively. The pair of horizontal cutting knives are arranged at intervals in the horizontal direction and the projections in the direction of the cutting chamber overlap. The pair of vertical cutting knives are vertically connected to the lower inclined surface 1b of the cutting groove and the lower inclined surface 2b of the cutting protrusion, respectively. The pair of vertical cutting knives are arranged at intervals in the horizontal direction and the projections in the direction of the cutting chamber overlap.

[0032] A blunt cutter 21 is arranged between the horizontal cutter 10 and the vertical cutter 11. The blunt cutter is annular in structure and fixed on the lower inclined surface of the inner cutter disc. The blunt cutter has a semicircular cross section. The garbage can be properly turned over by the blunt cutter, which is conducive to the omnidirectional cutting of the garbage.

[0033] The horizontal cutting blade 10 and the vertical cutting blade 11 are both annular structures circumferentially surrounding the corresponding inclined surfaces of the inner blade disc or the outer blade ring;

[0034] Combination Figure 3 As shown, the horizontal cutting blade 10 extends horizontally, and the two horizontal cutting blades are staggered up and down. The horizontal cutting blades are arranged at intervals in the horizontal direction so that the two horizontal cutting blades do not cross the vertical line a, that is, a vertical channel is provided between the two horizontal cutting blades. In addition, the projections of the horizontal cutting blades in the direction of the cutting chamber overlap. In combination with the figure, the two horizontal cutting blades cross the line b, so that the garbage can pass smoothly through the vertical channel between the two horizontal cutting blades, and at the same time, it is efficiently cut and crushed by the two horizontal cutting blades when running in the direction of the cutting chamber.

[0035] Combination Figure 3 As shown, the vertical cutting blade 11 extends vertically, and the two vertical cutting blades 11 are arranged at intervals in the horizontal direction, so that the two vertical cutting blades 11 do not cross the line c, that is, a vertical channel is provided between the two vertical cutting blades 11, and the two vertical cutting blades 11 partially overlap in the projection direction along the cutting cavity. In combination with the figure, the two vertical cutting blades cross the line b, so that the garbage can pass smoothly in the vertical channel between the two vertical cutting blades, and at the same time, it can be efficiently cut and crushed by the two vertical cutting blades when the cutting cavity is running;

[0036] In this embodiment, the upper grinding block 5 and the lower grinding block 6 are provided with coarse grinding inclined surfaces 9, and the two coarse grinding inclined surfaces are arranged in parallel and opposite to each other.

[0037] The two rough grinding bevels are opposite to each other, which means that the grinding chamber runs in opposite directions. Figure 4As shown, larger grinding particles are arranged on the coarse grinding surface. When the garbage moves from top to bottom in the grinding chamber, it first passes through the coarse grinding surface of the lower grinding surface block to grind the bottom of the garbage, then passes through the grinding channel for fine grinding, and finally passes through the coarse grinding surface of the upper grinding block to grind the top of the garbage. The combination of the coarse grinding surface and the fine grinding surface is conducive to all-round grinding of the garbage and forming more weak links on the garbage, which is convenient for breaking into blocks during subsequent cutting. It can further improve the phenomenon of the cutting knife being entangled and stuck, and improve the cutting efficiency.

[0038] In this embodiment, the upper inclined surface 1a of the cutting groove is connected to the lower inclined surface 1b of the cutting groove via the cutting groove vertical surface 1c, the upper inclined surface 2a of the cutting protrusion is connected to the lower inclined surface 2b of the cutting protrusion via the cutting protrusion vertical surface 2c, the cutting groove vertical surface 1c and the cutting protrusion vertical surface 2c form a transition cavity 12, and a spiral cutter 13 is arranged on the cutting groove vertical surface.

[0039] Combination Figure 1 As described above, since the cutting groove and the cutting protrusion are both annular structures, the cutting groove facade 1c and the cutting protrusion facade 2c are both circular annular surfaces, and the width of the transition chamber is greater than the width of the grinding chamber, so that the garbage entering the transition chamber from the grinding chamber is loosened, wherein the spiral cutter 13 circumferentially surrounds the cutting groove facade 1c, and the outer edge of the spiral cutter is a blade. The spiral cutter is used to cut the garbage in the transition chamber and can transport the garbage in the transition chamber downward, so that the garbage in the transition chamber is forced to be transported into the cutting chamber.

[0040] In this embodiment, two groups of the 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 assemblies located at the front side is smaller than the width of the grinding channel formed by the grinding assemblies located at the rear side.

[0041] The front side refers to the direction in which the garbage moves, corresponding to Figure 2 In the downward oblique direction of the middle grinding chamber, the garbage is first ground through a grinding channel with a larger width, and then ground through a grinding channel with a smaller width, gradually increasing the friction pressure on the garbage, improving the grinding effect, and facilitating the full grinding of the garbage.

[0042] In this embodiment, a stirring rod 14 for loosening the garbage entering from the grinding chamber is provided in the transition chamber 12, and the stirring rod is located above the spiral cutter.

[0043] Combination Figure 4 As shown, a plurality of stirring rods are provided and are circumferentially arranged around the inner wall of the transition chamber. The stirring rods are used to stir the garbage and loosen the garbage squeezed by the grinding chamber to facilitate subsequent garbage cutting.

[0044] In this embodiment, the cavity at the outer port of the grinding chamber 3 is an expansion cavity that gradually expands outward to form a feed port 15, and a spiral blade 16 is fixedly connected to the inner cutter disc. The spiral blade is located at the feed port and is used to transport garbage from the feed port to the grinding chamber.

[0045] Combination Figure 1 and Figure 2 As shown, the outer diameter of the spiral blade 16 gradually increases from bottom to top to adapt to the changes in the chamber at the feed inlet. The spiral blade facilitates the forced transportation of garbage into the grinding chamber. In addition, a discharge port 22 is provided at the bottom of the cutting chamber, and the discharge port is open outward.

[0046] In this embodiment, a stirring rod assembly is provided between the two groups of grinding blocks, and the stirring rod assembly includes an upper stirring rod 17 connected to the upper inclined surface of the inner blade disc and a lower stirring rod 18 connected to the upper inclined surface of the outer blade ring.

[0047] Combination Figure 2 As shown, multiple upward stirring rods and downward stirring rods are provided and arranged circumferentially around the corresponding inclined surface. The upward stirring rods and downward stirring rods can stir the garbage, which is beneficial for all-round grinding of the garbage and improving the grinding effect.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A double-blade type garbage crushing knife, characterized by: It comprises an inner cutter disc and an outer cutter ring which is sleeved outside the inner cutter disc, the outer circle of the inner cutter disc is provided with a cutting groove with a triangular cross section along the circumferential direction, the inner circle of the outer cutter ring is provided with a triangular cutting protrusion which is adapted to the cutting groove, the upper inclined surface of the cutting groove and the upper inclined surface of the cutting protrusion together form a grinding cavity, the lower inclined surface of the cutting groove and the lower inclined surface of the cutting protrusion together form a cutting cavity, the grinding cavity and the cutting cavity are connected, the garbage pieces first pass through the grinding cavity and then pass through the cutting cavity; the upper and lower walls of the grinding cavity are provided with grinding block assemblies which cooperate with each other for grinding garbage, and the upper and lower walls of the cutting cavity are provided with cutting knife assemblies for cutting garbage; The grinding block assembly comprises an upper grinding block arranged on the upper inclined surface of the cutting groove and a lower grinding block arranged on the upper inclined surface of the cutting protrusion, the upper grinding block and the lower grinding block are both annular blocks, the upper grinding block and the lower grinding block are staggered in the direction of the grinding chamber, the upper grinding block and the lower grinding block are provided with fine grinding inclined surfaces, the two fine grinding inclined surfaces are relatively parallel and enclose a grinding channel obliquely downward, and the width of the grinding channel is smaller than the width of the grinding chamber; The upper grinding block and the lower grinding block are provided with coarse grinding inclined surfaces, and the two coarse grinding inclined surfaces are arranged in parallel and opposite to each other; The upper inclined surface of the cutting groove is connected to the lower inclined surface of the cutting groove by a cutting groove vertical surface, the upper inclined surface of the cutting protrusion is connected to the lower inclined surface of the cutting protrusion by a cutting protrusion vertical surface, the cutting groove vertical surface and the cutting protrusion vertical surface enclose a transition cavity, and a spiral cutter is arranged on the cutting groove vertical surface; The transition chamber is provided with a stirring rod for loosening the garbage entering from the grinding chamber, and the stirring rod is located above the spiral cutter; The grinding block assembly is provided in two groups along the direction of the grinding chamber, and the grinding channel formed by the grinding block assembly located at the front side has a smaller width than the grinding channel formed by the grinding block assembly located at the rear side; A stirring rod assembly is arranged between the two groups of grinding block assemblies, and the stirring rod assembly includes an upper stirring rod connected to the upper inclined surface of the cutting groove and a lower stirring rod connected to the upper inclined surface of the cutting protrusion; The cutting blade assembly includes a pair of horizontal cutting blades and a pair of vertical cutting blades, the horizontal cutting blades and the vertical cutting blades are arranged in the direction of the cutting cavity, the pair of horizontal cutting blades are respectively connected horizontally to the lower inclined surface of the cutting groove and the lower inclined surface of the cutting protrusion, the pair of horizontal cutting blades are arranged at intervals in the horizontal direction and the projections thereof partially overlap in the direction of the cutting cavity, the pair of vertical cutting blades are respectively connected vertically to the lower inclined surface of the cutting groove and the lower inclined surface of the cutting protrusion, the pair of vertical cutting blades are arranged at intervals in the horizontal direction and the projections thereof partially overlap in the direction of the cutting cavity; A blunt cutting knife is arranged between the horizontal cutting knife and the vertical cutting knife. The blunt cutting knife is annular in structure and fixed on the lower inclined surface of the cutting groove. The blunt cutting knife has a semicircular cross section. The cavity at the outer port of the grinding cavity is an expansion cavity that gradually expands outward to form a feed port. A spiral blade is fixedly connected to the inner cutter disc. The spiral blade is located at the feed port and is used to transport garbage from the feed port to the grinding cavity.

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