Single-shaft crusher

Abstract

The utility model discloses a single-shaft crusher, relates to the technical field of single-shaft crushers, and aims to solve the problems that a crushing chamber is blocked, the cutting efficiency is reduced and the power consumption is increased due to the fact that an existing crusher is easy to form bonding blocks in the impact crushing process of materials with higher water content. A charging barrel is fixedly mounted on the outer side of the upper portion of the base through screws, a main shaft is mounted in the base, a bearing seat is fixedly mounted on the upper portion of the base through screws, a fixed blade is fixedly mounted on the upper portion of the bearing seat through screws, and a movable blade is fixedly mounted on the outer portion of the upper end of the main shaft through screws. An adjusting pad is arranged between the base and the bearing seat, seven cutting edges are annularly arranged at the outer end of the fixed blade and the outer end of the movable blade respectively, the cutting edges are in a multi-arc shape, and the cutting edge directions of the cutting edges of the fixed blade and the cutting edges of the movable blade are opposite.

Description

Technical Field

[0001] The utility model relates to the technical field of single-shaft crushers, and specifically relates to a single-shaft crusher. Background Art

[0002] A single-shaft crusher is a mechanical device used to crush large-sized solid raw materials to the required size, and is widely used in various industrial fields. A single-shaft crusher generally consists of a main machine, a motor, a hydraulic system, a conveying system, a load box, a shear tool handle, etc. Among them, the main machine is the core of the crusher, including a main machine chassis, a main shaft, a feed inlet, a cutting knife, a sieve mesh, etc. The feed inlet is usually located at the top of the main machine. The inside of the main shaft contains a dispersive cutting gear and controls the entire cutting process. The load box is used to place the materials to be crushed, and the conveying system is responsible for feeding the materials into the load box. The single-shaft crusher adopts the method of single-shaft low-speed rotation, and uses a cutter head to cut, slice, tear, and pull the materials. A direct-connected worm and worm gear reduction motor is directly installed on the driving shaft of the crusher, and is transmitted to the driven shaft through gear speed change, so that the moving knife on the driving shaft and the stationary cutter head on the housing form relative movement. After the materials enter the crushing chamber, they are subjected to extrusion, tearing, and shearing, so as to achieve crushing.

[0003] Chinese Patent Publication No. CN220346063U discloses a single-shaft crusher, which includes support legs and a machine shell. The support legs are fixedly installed on the lower end surface of the machine shell. An inlet hopper is arranged at the top end of the machine shell. A knife box assembly is fixedly installed inside the machine shell. A knife shaft is rotatably connected inside the knife box assembly. Crushing blades are arranged on the knife shaft. One end of the knife shaft penetrates through the side wall of the machine shell and is fixedly connected with a pulley assembly. The pulley assembly is fixedly connected with a driving wheel through a transmission belt. A motor is arranged at the center of the driving wheel. The electric control of the single-shaft crusher in this application adopts PLC automatic control and star-delta starting; the starting method is adjusted to frequency conversion starting or servo mode to reduce the impact of the starting of a high-power motor on the power grid. At the same time, a human-machine interaction interface is adopted to real-time monitor the working states of the motor and various aspects of the crusher, and intelligently control the material pressing device to realize visual operation, making the operation simple, intuitive, and more user-friendly.

[0004] The above-mentioned existing technical solutions have the following defects: The current crushers are respectively of the hammer type, rubbing type, planing type, and non-edge iron sheet cutting type. During the impact crushing process of materials with a relatively high moisture content, it is easy to form adhesive blocks, resulting in blockage of the crushing chamber, reduction of cutting efficiency, and increase of power consumption. Therefore, we propose a single-shaft crusher to solve the problems raised above. Content of the Utility Model

[0005] The purpose of the present utility model is to provide a single - shaft crusher to solve the problems in the above - mentioned background technology that the existing crushers are prone to form agglomerated blocks during the impact crushing of materials with relatively high water content, resulting in blockage of the crushing chamber, reduction of cutting efficiency, and increase of power consumption.

[0006] To achieve the above purpose, the present utility model provides the following technical solutions: A single - shaft crusher includes a fixed table. Above the fixed table, a base is fixedly installed by screws. Outside the base above, a material cylinder is fixedly installed by screws. Inside the base, a main shaft is installed. Above the base, a bearing seat is fixedly installed by screws. Above the bearing seat, a fixed blade is fixedly installed by screws. Outside the upper end of the main shaft, a moving blade is fixedly installed by screws. An adjusting pad is provided between the base and the bearing seat.

[0007] Preferably, a feed inlet is provided above the material cylinder, and a discharge pipe is provided on one side of the lower end of the material cylinder.

[0008] Preferably, a frame seat is provided below the fixed table. Inside the frame seat, a crushing motor fixing frame is fixedly installed by screws. On one side of the crushing motor fixing frame, a crushing motor is fixedly installed. The output end of the crushing motor is in transmission connection with the main shaft through a coupling.

[0009] Preferably, the lower end inside the base is rotatably connected to the main shaft through a thrust bearing. The upper end and the lower end inside the bearing seat are rotatably connected to the main shaft through bearings. An outer spacer and an inner spacer are provided between the two bearings. The upper ends of the outer spacer and the inner spacer are in contact with the upper bearing, and the upper ends of the outer spacer and the inner spacer are in contact with the lower bearing.

[0010] Preferably, a material guiding plate is fixedly installed above the moving blade by a nut, and the material guiding plate is fixedly connected to the main shaft by screws.

[0011] Preferably, seven cutting edges are respectively annularly arranged at the outer ends of the fixed blade and the moving blade. The cutting edges are multi - arc - shaped, and the cutting edge directions of the fixed blade and the moving blade are opposite.

[0012] Preferably, a moving blade main - shaft groove is opened at the middle position inside the moving blade. The upper end of the main shaft passes through the moving blade main - shaft groove. Four moving - blade screw grooves are annularly opened outside the moving blade main - shaft groove. Screws for connecting the moving blade main - shaft groove and the main shaft pass through the moving - blade screw grooves.

[0013] Preferably, a fixed - blade main - shaft groove is opened at the middle position inside the fixed blade. The upper end of the main shaft passes through the fixed - blade main - shaft groove. Four fixed - blade screw grooves are annularly opened outside the fixed - blade main - shaft groove. Screws for connecting the fixed - blade main - shaft groove and the main shaft pass through the fixed - blade screw grooves.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: During the crushing operation of the present utility model, an automatic feeding device is installed above the feeding port to input materials into the material cylinder. The crushing motor drives the main shaft to drive the moving blades above it to rotate at a high speed, and forms a shear with the fixed blades installed above the bearing seat, cutting the materials into segments. The air suction device is installed on the discharge pipe, which can achieve stable output and uniformity of the chopped length. The gap between the fixed blade and the moving blade can control the fineness of the materials. The size of the gap between the fixed blade and the moving blade is adjusted by the thickness of the adjusting pad between the bearing seat and the base. The cutting edges of the moving blade and the fixed blade are multi-circular arc-shaped, in the shape of scissors, and the cutting edges are sharp. It can cut dry straw, wheat straw and various green feeds, and can also cut materials with strong toughness and high humidity, crushing the materials. The structure is compact, easy to maintain, high in efficiency, low in required power, and energy-saving. It solves the problem that the existing crushers are prone to form adhesive blocks during the impact crushing of materials with higher moisture content, resulting in blocking the crushing chamber, reducing the cutting efficiency and increasing the power consumption. Description of the Drawings

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

[0016] Figure 2 is a top view of the fixed blade and the moving blade in the present utility model;

[0017] Figure 3 is a side view of the fixed blade and the moving blade in the present utility model;

[0018] Figure 4 is a three-dimensional view of the fixed blade and the moving blade in the present utility model;

[0019] Figure 5 is a disassembled view of the fixed blade and the moving blade in the present utility model.

[0020] In the figure: 1, fixed table; 2, frame seat; 3, crushing motor fixing frame; 4, crushing motor; 5, coupling; 6, main shaft; 7, base; 8, bearing seat; 9, material cylinder; 10, discharge pipe; 11, thrust bearing; 12, bearing; 13, fixed blade; 14, moving blade; 15, material guiding plate; 16, cutting edge; 17, main shaft groove of moving blade; 18, screw groove of moving blade; 19, main shaft groove of fixed blade; 20, screw groove of fixed blade; 21, outer spacer; 22, inner spacer. Detailed Embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0022] Please refer to Figures 1-5 Figures 1-5 , an embodiment provided by the present utility model: a single - shaft crusher, including a fixed table 1, a base 7 is fixedly installed outside above the fixed table 1 by screws, a material cylinder 9 is fixedly installed above the base 7 by screws, a main shaft 6 is installed inside the base 7, a bearing seat 8 is fixedly installed above the base 7 by screws, a fixed blade 13 is fixedly installed above the bearing seat 8 by screws, a moving blade 14 is fixedly installed outside the upper end of the main shaft 6 by screws, a dust - proof sealing ring is arranged at the connection between the fixed blade 13 and the main shaft 6, an adjusting pad is arranged between the base 7 and the bearing seat 8, the gap between the fixed blade 13 and the moving blade 14 can control the fineness of the material, and the size of the gap between the fixed blade 13 and the moving blade 14 is adjusted by the thickness of the adjusting pad between the bearing seat 8 and the base 7.

[0023] During the crushing operation, an automatic feeding device is installed above the feeding port to input the material into the material cylinder 9. The crushing motor 4 drives the main shaft 6 to drive the moving blade 14 above it to rotate at a high speed, and forms a shear with the fixed blade 13 installed above the bearing seat 8 to cut the material into segments. The air suction device is installed on the discharge pipe 10, which can achieve stable output and uniformity of the chopped length. The gap between the fixed blade 13 and the moving blade 14 can control the fineness of the material, and the size of the gap between the fixed blade 13 and the moving blade 14 is adjusted by the thickness of the adjusting pad between the bearing seat 8 and the base 7. The cutting edges 16 of the moving blade 14 and the fixed blade 13 are multi - arc - shaped, in the shape of scissors, and the cutting edges are sharp, which can cut dry straw, wheat straw and various green feeds, and can also cut materials with strong toughness and high humidity.

[0024] Please refer to Figure 1 Figure 1 , a feeding port is arranged above the material cylinder 9, a discharge pipe 10 is arranged on one side of the lower end of the material cylinder 9, an air suction device is hermetically connected to one side of the discharge pipe 10, a frame seat 2 is arranged below the fixed table 1, a crushing motor fixing frame 3 is fixedly installed inside the frame seat 2 by screws, a crushing motor 4 is fixedly installed on one side of the crushing motor fixing frame 3, and the output end of the crushing motor 4 is in transmission connection with the main shaft 6 through a coupling 5.

[0025] Please refer to Figure 1 Figure 1 , the lower end inside the base 7 and the main shaft 6 are rotationally connected through a thrust bearing 11, the upper and lower ends inside the bearing seat 8 and the main shaft 6 are rotationally connected through bearings 12, an outer spacer 21 and an inner spacer 22 are arranged between the two bearings 12, the upper ends of the outer spacer 21 and the inner spacer 22 are in contact with the upper bearing 12, the upper ends of the outer spacer 21 and the inner spacer 22 are in contact with the lower bearing 12, and the thrust bearing 11 and the bearings 12 provide rotational support for the main shaft 6 and are fixed by the outer spacer 21 and the inner spacer 22.

[0026] Please refer to Figure 1, above the moving blade 14, a material guiding plate 15 is fixedly installed by a nut. The material guiding plate 15 is fixedly connected to the main shaft 6 by screws. After the moving blade 14 is fixed, it is locked with double round nuts.

[0027] Please refer to Figures 2-5 , on the outer ends of the fixed blade 13 and the moving blade 14, seven cutting edges 16 are respectively arranged in a ring shape. The cutting edges 16 are multi-arc-shaped, and the cutting edge directions of the cutting edges 16 of the fixed blade 13 and the moving blade 14 are opposite.

[0028] Please refer to Figures 2-5 , at the middle position inside the moving blade 14, a moving blade main shaft groove 17 is opened. The upper end of the main shaft 6 passes through the moving blade main shaft groove 17. Four moving blade screw grooves 18 are annularly opened on the outside of the moving blade main shaft groove 17. Screws for connecting the moving blade main shaft groove 17 and the main shaft 6 pass through the moving blade screw grooves 18. At the middle position inside the fixed blade 13, a fixed blade main shaft groove 19 is opened. The upper end of the main shaft 6 passes through the fixed blade main shaft groove 19. Four fixed blade screw grooves 20 are annularly opened on the outside of the fixed blade main shaft groove 19. Screws for connecting the fixed blade main shaft groove 19 and the main shaft 6 pass through the fixed blade screw grooves 20.

[0029] Working principle: During the crushing operation, an automatic feeding device is installed above the feeding port to input materials into the material cylinder 9. The crushing motor 4 drives the main shaft 6 to drive the moving blade 14 above it to rotate at a high speed, and forms a shear with the fixed blade 13 installed above the bearing seat 8 to cut the materials into segments. The air suction device is installed on the discharge pipe 10, which can achieve stable output and uniformity of the chopped length. The gap between the fixed blade 13 and the moving blade 14 can control the fineness of the materials. The size of the gap between the fixed blade 13 and the moving blade 14 is adjusted by the thickness of the adjusting pad between the bearing seat 8 and the base 7. The cutting edges 16 of the moving blade 14 and the fixed blade 13 are multi-arc-shaped, in the shape of scissors, and the cutting edges are sharp, and can cut dry straws, wheat straws and various green feeds, and can also cut materials with strong toughness and high humidity.

[0030] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A single-shaft crusher, comprising a fixed table (1), characterized in that: Above the fixed table (1), a base (7) is fixedly installed by screws. Outside the upper part of the base (7), a barrel (9) is fixedly installed by screws. Inside the base (7), a main shaft (6) is installed. Above the base (7), a bearing seat (8) is fixedly installed by screws. Above the bearing seat (8), a fixed blade (13) is fixedly installed by screws. Outside the upper end of the main shaft (6), a moving blade (14) is fixedly installed by screws. An adjusting pad is arranged between the base (7) and the bearing seat (8).

2. The single-shaft crusher according to claim 1, characterized in that: Above the barrel (9), a feed inlet is provided. On one side of the lower end of the barrel (9), a discharge pipe (10) is provided.

3. A single-shaft grinder according to claim 1, characterized in that: Below the fixed table (1), a frame seat (2) is provided. Inside the frame seat (2), a crushing motor fixing frame (3) is fixedly installed by screws. On one side of the crushing motor fixing frame (3), a crushing motor (4) is fixedly installed. The output end of the crushing motor (4) is in transmission connection with the main shaft (6) through a coupling (5).

4. A single-shaft crusher according to claim 1, characterized in that: Between the lower end inside the base (7) and the main shaft (6), they are rotationally connected through a thrust bearing (11). Between the upper and lower ends inside the bearing seat (8) and the main shaft (6), they are rotationally connected through bearings (12). An outer spacer ring (21) and an inner spacer ring (22) are arranged between the two bearings (12). The upper ends of the outer spacer ring (21) and the inner spacer ring (22) are in contact with the upper bearing (12). The upper ends of the outer spacer ring (21) and the inner spacer ring (22) are in contact with the lower bearing (12).

5. A single-shaft crusher according to claim 1, characterized in that: Above the moving blade (14), a material guiding plate (15) is fixedly installed by nuts. The material guiding plate (15) is fixedly connected to the main shaft (6) by screws.

6. The single-shaft crusher according to claim 1, wherein: Seven cutting edges (16) are respectively annularly arranged at the outer ends of the fixed blade (13) and the moving blade (14). The cutting edges (16) are in the shape of multi-arcs. The cutting directions of the cutting edges (16) of the fixed blade (13) and the cutting edges (16) of the moving blade (14) are opposite.

7. The single-shaft crusher according to claim 6, characterized in that: At the middle position inside the moving blade (14), a moving blade main shaft groove (17) is opened. The upper end of the main shaft (6) passes through the moving blade main shaft groove (17). Four moving blade screw grooves (18) are annularly opened outside the moving blade main shaft groove (17). Screws for connecting the moving blade main shaft groove (17) and the main shaft (6) pass through the moving blade screw grooves (18).

8. The single-shaft crusher according to claim 7, characterized in that: At the middle position inside the fixed blade (13), a fixed blade main shaft groove (19) is opened. The upper end of the main shaft (6) passes through the fixed blade main shaft groove (19). Four fixed blade screw grooves (20) are annularly opened outside the fixed blade main shaft groove (19). Screws for connecting the fixed blade main shaft groove (19) and the main shaft (6) pass through the fixed blade screw grooves (20).

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