CN201769300U - A tire shredder - Google Patents

Abstract

The utility model relates to the technical field of production machinery, and particularly refers to a tire shredder for shredding block tires after primary crushing. It includes a motor, a shredding chamber, and a cutter shaft. The motor is installed on a frame. The motor drives a pulley connected to the cutter shaft to rotate through a belt. The cutter shaft crosses the shredding chamber. The upper end of the shredding chamber is connected to a feed hopper, and a screen is provided at the discharge port at the lower end of the shredding chamber. A conveyor belt is provided below the screen, and a magnetic separation device is provided on the conveyor belt; cooling devices are provided at the left and right ends of the shredding chamber; opposite fixed knives are provided on the front and rear inner sides of the shredding chamber, and a moving knife that cooperates with the fixed knife for shredding is installed on the cutter shaft. The utility model has the advantages of compact and reasonable structure, easy manufacture and assembly, fully enclosed structure and reasonable internal combination, which can effectively reduce noise, and use a cooling device to cool the pulverized rubber particles in real time to prevent the rubber particles from sticking due to excessively high temperature during high-speed pulverization, so as to achieve smooth discharge.

Description

A tire shredder

Technical field:

The utility model relates to the technical field of production machinery, in particular to a tire shredder for crushing block tires after primary crushing.

Background technique:

At present, a large amount of waste rubber products are produced every year in the society, including non-tire rubber products and tires. These waste rubber products need to be processed. The traditional methods for processing these wastes include normal temperature crushing and low temperature freezing crushing. Among them, the normal temperature pulverization method includes the traditional secondary rolling production to produce rubber powder with a particle size of 0.31 to 1.4mm (48 mesh to 15 mesh) from waste rubber, and the normal temperature continuous pulverization method developed by Kobe Steel. (called CTC technology), through coarse and fine crushing two processes to produce rubber powder with the same particle size as above.

The tire shredder is a kind of mechanical equipment that crushes the block tires after the first crushing, but the traditional tire shredder has the defects of complicated structure, high noise and short service life. For this reason, the applicant, in view of the lack and inconvenience of the conventional tire shredder, adheres to the spirit of research, innovation and excellence, and utilizes his professional vision and professional knowledge to develop a kind of tire shredder that has a wide range of applications and is in line with industrial utilization. Tire Shredder.

Invention content:

The purpose of the utility model is to overcome the defects of the prior art, and provide a tire shredder with compact structure, reasonable structure, and convenient manufacture and assembly.

Another purpose of the utility model is to provide a tire shredder with low operating noise, which can cool down the pulverized rubber particles in real time, prevent the rubber particles from sticking, and achieve smooth discharge.

In order to achieve the above object, the utility model adopts the following technical solutions:

A tire shredder, including a motor, a crushing chamber, and a cutter shaft. The motor is installed on a frame. The motor drives the pulley connected to the cutter shaft to rotate through a belt. The cutter shaft traverses the crushing chamber. The upper end of the crushing chamber is connected to a hopper , and the discharge port at the lower end of the crushing chamber is provided with a screen, and a conveyor belt is provided under the screen, and a magnetic separation device is provided on the conveyor belt; Cooling device; opposite fixed knives are arranged on the front and rear inner surfaces of the crushing chamber, and a moving knife that cooperates with the fixed knives for crushing is installed on the knife shaft.

The hopper has a double-layer filling structure.

The section shape of the cutter shaft is a regular hexagon, each movable knife has two sets of usable cutting edges, and the fixed knife has four sets of usable cutting edges.

The cooling device is an internal circulating water cooling structure.

Compared with the prior art, the utility model has the advantages of compact and reasonable structure, convenient manufacture and assembly, fully enclosed structure and reasonable internal combination, which can effectively reduce noise, and use the cooling device to cool down the pulverized rubber particles in real time to prevent glue During the high-speed crushing process, the granules stick together due to the high temperature, so that the material can be discharged smoothly.

Another advantage of the utility model is that the tooth-shaped cutter made of special tool steel has a simple structure and is wear-resistant. After blunt, you can change to another group to continue to use, which can prolong the service life of the tool.

Description of drawings:

Accompanying drawing 1 is the working principle diagram of the present utility model;

Accompanying drawing 2 is the structural representation of one embodiment of the utility model;

Accompanying drawing 3 is the side structure diagram of the embodiment of Fig. 2.

Detailed ways:

Below in conjunction with accompanying drawing, the utility model is further described:

Referring to Figures 1 to 3, a tire shredder according to the present invention includes a motor 1, a crushing chamber 2, and a cutter shaft 3. The motor 1 is installed on a frame 4, and the motor is driven by a belt 11 to connect with the cutter. The belt pulley 31 connected to the shaft 3 rotates, the knife shaft 3 traverses the crushing chamber 2, and the upper end of the crushing chamber 2 is connected with an inlet hopper 5, which has a double-layer filling structure and can be filled with sound-absorbing materials inside; while the outlet at the lower end of the crushing chamber 2 A sieve 6 is provided at the feed opening, a conveyor belt 7 is provided below the sieve 6, and a magnetic separation device 71 is provided on the conveyor belt 7; Cooling device 8 ; opposite fixed knives 21 are provided on the front and rear inner sides of the pulverizing chamber 2 , and a movable knife 32 that cooperates with the fixed knives 21 to pulverize is installed on the knife shaft 3 .

The section shape of the cutter shaft 3 is a regular hexagon, and the toothed cutter made of special tool steel is simple in structure and wear-resistant; each movable knife 32 has two sets of usable cutting edges, while the fixed knife 21 has four sets of usable Cutting edge, one set of cutting edges can be changed to another set to continue to use after blunting, which can prolong the service life of the tool.

The cooling device 8 is an internal circulating water cooling structure. The cooling device 8 can reduce the temperature of the crushing chamber and the bearing package, avoiding the cohesion of the colloidal particles due to high temperature during the high-speed crushing process, and achieving smooth discharge. Cooled by internal circulating water, easy to assemble and implement, and environmentally friendly.

The utility model is used for tearing and shearing the 50×50mm block tire rubber material crushed by the tire crusher into particles of about 25×25mm through further tearing and shearing. When working, the 50×50mm block tire rubber is sent into the crushing chamber 2 through the hopper 5, and the motor 1 transmits the power to the pulley 31 connected to the cutter shaft 3 through the belt 11, thereby driving the cutter shaft 3 to rotate, and the cutter shaft 3 is equipped with a number of tooth-shaped moving knives 32, and the moving knives 32 cooperate with the fixed knife 21 on the inner side of the crushing chamber 2 to tear and cut, so as to realize the crushing of block tire rubber materials, and at the same time, most of the steel wires in the rubber materials After being separated, the colloidal particles and steel wires smaller than or equal to 25×25mm leak out through the mesh of the screen 6, and fall on the conveyor belt 7 to be transported out, and the conveyor belt 7 is equipped with a magnetic separation device 71, such as a magnetic roller. etc., the colloidal particles and the steel wire are separated by the magnetic separation device 71, and the separated colloidal particles are then sent to the next process for processing. In this embodiment, the screen 6 is made of high-hardness wear-resistant alloy steel, which greatly improves the service life of the screen. The screen 6 is semi-circularly covered at the discharge port at the lower end of the crushing chamber 2, which is convenient for assembly and convenient repair. The magnetic separation device 71 is distributed on the conveyer belt 7, which can fully separate the steel wires, thereby prolonging the service life of subsequent equipment cutters and screens.

Claims (4)

1. A tire shredder, comprising a motor (1), a crushing chamber (2), and a knife shaft (3), the motor (1) is installed on the frame (4), and the motor is driven by a belt (11) to connect with the knife The pulley (31) connected to the shaft (3) rotates, and it is characterized in that: the knife shaft (3) traverses the crushing chamber (2), the upper end of the crushing chamber (2) is connected with a hopper (5), and the lower end of the crushing chamber (2) A sieve (6) is provided at the outlet of the sieve, a conveyor belt (7) is provided below the sieve (6), and a magnetic separation device (71) is provided on the conveyor belt (7); End, that is, the penetrating end of the cutter shaft (3) is provided with a cooling device (8); on the front and rear inner sides of the crushing chamber (2), there are relative fixed knives (21), and on the cutter shaft (3) The moving knife (32) that cooperates fixed knife (21) to pulverize is installed. 2. A tire shredder according to claim 1, characterized in that: the feeding hopper (5) has a double-layer filling structure. 3. A tire shredder according to claim 1, characterized in that: the cross-sectional shape of the knife shaft (3) is a regular hexagon, and each moving knife (32) has two sets of available cutting edges, while the fixed knife (32) 21) There are four sets of cutting edges available. 4. A tire shredder according to claim 1, characterized in that the cooling device (8) is an internal circulating water cooling structure.

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