Crushing blade and cutter head for crusher

Abstract

The utility model discloses a crushing blade for a crusher and a cutter head. The crushing blade for the crusher comprises a blade body, the outer side of the blade body is connected with a blade part; the blade part comprises a first blade part and a second blade part; each of the first blade part and the second blade part comprises a tooth end and a connecting part; the tooth end comprises a first cambered surface and a second cambered surface; the arc diameters of the first arc surface and the second arc surface are equal; the outer side of the connecting part is in an outwards-protruding circular arc shape, and the side face of the connecting part is tangent to the connecting position of the first arc face and the second arc face. The blade parts are formed at the two ends of the blade in an arc mode, the two blade parts are arranged, smashing is more thorough, the two second blade parts are arranged, the blade parts are connected through the arc faces, residue of chippings can be prevented, the connecting parts are better connected with the blade parts through the protruding arc faces, and meanwhile the blade parts are more stable in performance. The blade parts are connected more stably, and noise generated during vibration can be reduced through rapid cutting.

Description

Technical Field

[0001] The utility model relates to the technical field of crusher parts, in particular to a crushing blade and a cutter disc for a crusher. Background Art

[0002] In the prior art, when crushing larger objects, they are generally coarsely crushed first and then finely crushed. In particular, when crushing wood, they are first coarsely crushed by hammers. However, the existing tools used for coarse crushing produce large noise and vibration when hammering trees, and the tools are easily damaged, which is not conducive to long-term use. Utility Model Content

[0003] The utility model aims to solve the problems existing in the prior art and proposes a crushing blade and a cutter disc for a crusher.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A crushing blade for a crusher comprises a blade body; a blade portion is connected to the outer side of the blade body; the blade portion comprises a first blade portion and a second blade portion; the first blade portion and the second blade portion both comprise a tooth end and a connecting portion; the tooth end comprises a first arc surface and a second arc surface; the arc diameters of the first arc surface and the second arc surface are equal; the outer side of the connecting portion is an arc shape convex outward, and the side surfaces of the connecting portion are tangent to the connection between the first arc surface and the second arc surface.

[0006] Preferably, two second blades are provided; the two second blades are connected by an arc surface in the middle.

[0007] Preferably, two blades are provided, and the two blades are arranged opposite to each other.

[0008] Preferably, a mounting hole is provided in the middle of the blade body; and limiting grooves are provided at both ends of the mounting hole.

[0009] Preferably, the cutting surfaces of the first cutting edge and the second cutting edge are both inclined surfaces.

[0010] The utility model also proposes a crushing blade disc for a crusher, comprising the above-mentioned crushing blades; and a rotating shaft; the outer side of the rotating shaft is connected to a limiting block matching the limiting groove; and the crushing blades are arranged on the rotating shaft through mounting holes.

[0011] Preferably, there are two rotating shafts; and the crushing blades on the two rotating shafts are arranged alternately.

[0012] Compared with the prior art, the utility model provides a crushing blade for a crusher, which has the following beneficial effects:

[0013] The crushing blade for the crusher has two cutting edges formed by arcs at both ends of the blade, so that the crushing is more thorough. The second cutting edge is provided with two cutting edges connected by arc surfaces to prevent the residue of debris. The connecting portion adopts a protruding arc surface to better connect with the cutting edges and make the connection of the cutting edges more stable. Rapid cutting can reduce noise during vibration.

[0014] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. The utility model has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a three-dimensional diagram of the utility model;

[0017] Figure 3 It is a structural schematic diagram of another embodiment of the utility model;

[0018] Figure 4 It is a side view of another embodiment of the utility model.

[0019] In the figure: 11 blade body, 12 mounting hole, 121 limiting groove, 21 first cutting edge, 22 second cutting edge, 23 tooth end, 24 connecting portion, 231 first arc, 232 second arc, 3 rotating shaft, 31 limiting block. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0022] Reference Figure 1-2A crushing blade for a crusher, comprising a blade body 11; a blade portion is connected to the outer side of the blade body 11; two blade portions are provided; and the two blade portions are arranged opposite to each other; the blade portion comprises a first blade portion 21 and a second blade portion 22; the cutting surfaces of the first blade portion 21 and the second blade portion 22 are both inclined surfaces, which are convenient for cutting during crushing; the first blade portion 21 and the second blade portion 22 both comprise a tooth end 23 and a connecting portion 24; the tooth end 23 comprises a first arc surface 231 and a second arc surface 232; the arc diameters of the first arc surface 231 and the second arc surface 232 are equal; the outer side of the connecting portion 24 is an arc shape convex outward, and the side surfaces of the connecting portion 24 are tangent to the connection between the first arc surface 231 and the second arc surface 232.

[0023] A mounting hole 12 is provided in the middle of the blade body 11 ; limiting grooves 121 are provided at both ends of the mounting hole 12 ; and the limiting grooves 121 facilitate connection with the output shaft of the pulverizer.

[0024] When in use, the first blade 21 performs coarse crushing and then the second blade 22 performs crushing again. Two second blades 22 are provided. The two second blades 22 are connected by an arc surface. The arc surface can be used to prevent debris from staying and perform better crushing.

[0025] The utility model also proposes a crushing blade for a crusher, referring to Figure 3-4 , including the above-mentioned crushing blade; also including a rotating shaft 3; the outer side of the rotating shaft 3 is connected to a limit block 31 matching the limit groove 121; the crushing blades 10 are arranged on the rotating shaft 3 through the mounting holes 12; the rotating shaft 3 is provided with two; the crushing blades 10 on the two rotating shafts 3 are staggered; the two ends of the two rotating shafts 3 are connected by a plate so that the two sets of blades work together.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A crushing blade for a crusher, characterized in that: The invention comprises a blade body (11); the outer side of the blade body (11) is connected with a blade portion; the blade portion comprises a first blade portion (21) and a second blade portion (22); the first blade portion (21) and the second blade portion (22) both comprise a tooth end (23) and a connecting portion (24); the tooth end (23) comprises a first arc surface (231) and a second arc surface (232); the arc diameters of the first arc surface (231) and the second arc surface (232) are equal; the outer side of the connecting portion (24) is an arc shape convex outwards, and the side surfaces of the connecting portion (24) are tangent to the connection between the first arc surface (231) and the second arc surface (232).

2. A pulverizing blade for a pulverizer according to claim 1, characterized in that: Two second blade portions (22) are provided; the two second blade portions (22) are connected in the middle by a curved surface.

3. A pulverizing blade for a pulverizer according to claim 1, characterized in that: There are two blades, and the two blades are arranged opposite to each other.

4. A pulverizing blade for a pulverizer according to claim 1, characterized in that: A mounting hole (12) is provided in the middle of the blade body (11); and limiting grooves (121) are provided at both ends of the mounting hole (12).

5. A pulverizing blade for a pulverizer according to claim 1, characterized in that: The cutting surfaces of the first blade portion (21) and the second blade portion (22) are both inclined surfaces.

6. A crushing blade for a crusher, characterized in that: It comprises the crushing blade (10) according to any one of claims 1 to 4; it also comprises a rotating shaft (3); the outer side of the rotating shaft (3) is connected to a limiting block (31) matching the limiting groove (121); the crushing blades (10) are arranged on the rotating shaft (3) through the mounting holes (12).

7. A crushing blade for a crusher according to claim 6, characterized in that: Two rotating shafts (3) are provided; the crushing blades (10) on the two rotating shafts (3) are arranged in a staggered manner.

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