CN218590713U - Tire breaker - Google Patents

Abstract

The utility model relates to a tire shredding device, which effectively solves the problems of fast wear and high damage rate of tire shredder knives; the technical solution includes a shell, which is equipped with a shredding unit and a grinding unit, and the shredding unit is located at Above the grinding unit; the chopping unit includes two horizontal shafts, the two shafts are spaced apart and parallel to each other, and each shaft is coaxially equipped with a circular pressure plate and a circular cutter, and the discs and cutters are installed alternately , there is an interval between the pressure plate and the cutter, the diameter of the pressure plate is larger than the diameter of the cutter, the cutter on any one shaft is tangent to the pressure plate on the other shaft; the grinding unit includes a fixed grinding roller, the fixed grinding roller There is a rotating grinding roller installed on the left and right sides respectively, and the two rotating grinding rollers are both tangent to the fixed grinding roller, and the sides in contact with the fixed grinding roller are both turned downward; the utility model cuts the rubber after bending, which greatly reduces the cutting The cutting resistance of the knife slows down the damage of the knife and the wear of the blade, and improves the cutting efficiency.

Description

A tire crushing device

technical field

The utility model relates to the field of waste tire recycling equipment, in particular to a tire crushing device.

Background technique

After the waste tires are broken into granules or powders, they can be used for a wide range of purposes such as oil refining, as raw materials for plastic products or reclaimed rubber, etc. Therefore, the recycling and reuse of waste tires has a broad market and huge environmental benefits; Almost all of them need to be crushed. The current tire crushing mainly adopts twin-shaft shredders or knife-tooth or blade crushers, such as the invention patent with application number 201610723195.1, the invention patent with application number 201610723195.1, and the application number: The invention patent of CN202010573684.X, etc. Although the shredder has a large crushing power and is durable, it can only shred the tires into larger rubber pieces, which can only be used as a preliminary crushing process, while blade or knife-tooth crushing The blade or tooth of the machine is relatively fragile, especially the tire rubber has good toughness, and it is difficult to cut and break, so the crushing pressure of the blade and tooth is high, the blade is worn, and it is prone to damage such as collapse;

According to common sense, when cutting tough materials, such as rubber, PVC, wicker, etc., it is very easy to bend them first, and then cut on the outside of the bend, because the material is stretched here, and light cutting is enough. Fracture cutting will not clamp the knife, but this method is only suitable for manual cutting or piece-by-piece cutting. The design purpose of this utility model is to provide a new crusher structure that can use this method for continuous and high-efficiency crushing of rubber.

Contents of the invention

The utility model provides a tire crushing device, aiming to solve the problems of fast wear and high damage rate of the cutter of the tire crusher.

The technical solution it solves includes a shell, which is equipped with a chopping unit and a grinding unit, and the chopping unit is located above the grinding unit; the chopping unit includes two horizontal rotating shafts, and the two rotating shafts are spaced from each other and parallel to each other. A circular pressure plate and a circular cutter are coaxially installed. The disk and the cutter are installed alternately. There is a gap between the pressure plate and the cutter. The diameter of the pressure plate is larger than the diameter of the cutter. The cutting knife is tangent to the pressure plate on the other rotating shaft; the grinding unit includes a fixed grinding roller, and a rotating grinding roller is installed on the left and right sides of the fixed grinding roller, and the two rotating grinding rollers are both tangent to the fixed grinding roller and The contact sides of the fixed rollers are turned downwards.

The pressure plate, the cutter and the rotating shaft are all connected by a long key.

Axial positioning sleeves are installed between adjacent pressure plates and cutters.

The bottom of the housing is equipped with a filter screen, and a finished material collection box is arranged under the filter screen.

The filter screen is set higher on the left and lower on the right, and the larger rubber particles slide and gather to the right along the filter screen. A vertical auger is provided on the right side of the box, and the upper end of the auger extends above the chopping unit.

The utility model cuts the rubber after bending, which greatly reduces the cutting resistance of the cutter, slows down the damage of the cutter and the abrasion of the blade, and improves the cutting efficiency.

Description of drawings

Fig. 1 is the front sectional view of the utility model.

Figure 2 is a top view of the shredding unit.

Fig. 3 is an enlarged view of position A in Fig. 2 .

FIG. 4 is an enlarged view of position B in FIG. 2 .

Detailed ways

1 to 4, the utility model includes a housing 1, the housing 1 is equipped with a shredding unit and a grinding unit, the shredding unit is located above the grinding unit, the tire is first cut into smaller pieces by the shredding unit and falls, Then it is ground into fine particles by the grinding unit; the chopping unit includes two horizontal rotating shafts 2, the two rotating shafts 2 are spaced from left to right and parallel, and each rotating shaft 2 is coaxially equipped with a circular pressure plate 3 and a circular cutting machine. Knives 4, disks and cutters 4 are installed alternately, that is, they are installed in the order of one pressure plate 3, one cutter 4, one pressure plate 3, and one cutter 4. There is an interval between the pressure plate 3 and the cutter 4. The diameter of the pressure plate 3 is larger than the diameter of the cutter 4, and the cutter 4 on any rotating shaft 2 is tangent to the pressure plate 3 on the other rotating shaft 2, that is to say, the pressure plates 3 on the two rotating shafts 2 are staggered. state, when the rubber sheet is put between the two rotating shafts 2, the pressure plates 3 on the two rotating shafts 2 will bite each other to make the rubber sheet bend in a continuous S shape, and each cutter 4 is just in line with the bending position The outer side of the rubber sheet, that is, the stretched side of the rubber sheet, can easily cut off the rubber sheet;

The grinding unit includes a fixed grinding roller 5, and a rotating grinding roller 6 is installed on the left and right sides of the fixed grinding roller 5. Downward rotation; the small pieces cut by the shredding pedicle unit fall between the fixed grinding roller 5 and the rotating grinding roller 6, and the rotating grinding roller 6 grinds the material and falls from the lower side of the grinding roller.

The pressure plate 3, the cutter 4 and the rotating shaft 2 are all connected through a long key 7, so that the pressure plate 3 and the cutting knife 4 rotate synchronously with the rotating shaft 2.

Axial positioning sleeves 8 are installed between the adjacent pressure plate 3 and cutter 4 to keep a fixed distance between the pressure plate 3 and the cutter 4, and both ends of the rotating shaft 2 connect the pressure plate 3 and the cutter 4 through nuts. Compression, when a certain cutter 4 or pressure plate 3 is damaged, it can be replaced separately.

The bottom of the housing 1 is equipped with a filter screen 9 , and a material collection box 10 is provided under the filter screen 9 , and the rubber particles whose particle size meets the requirements after grinding fall into the material collection box 10 from the filter screen 9 .

The filter screen 9 is set high on the left and low on the right, and the larger rubber particles slide and gather to the right along the filter screen 9. A vertical screw auger 11 is provided on the right side of the box body, and the upper end of the screw auger 11 extends to the chopped Above the unit, the insufficiently broken materials are lifted by the auger 11 for further chopping and grinding.

The utility model is suitable for crushing the tires which have been preliminarily processed. The tires can be processed into strips or larger fragments by conventional equipment such as a biaxial shredder and a tire strip cutter for the preliminary processing of the tires; the preliminarily processed rubber Put the strip or rubber sheet between the two rotating shafts 2, and the interlocking pressure plate 3 on the two rotating shafts 2 will bend the rubber strip or rubber sheet into a continuous S shape, as shown in Figure 4, and the pressure plate 3 The position of the tangential cutter 4 is exactly the outside of the rubber bend, that is, the position where the rubber is stretched. In the stretched state, the rubber can be easily cut, thereby greatly reducing the pressure of the cutter 4 The rubber material cut into small pieces by the shredding unit falls between the rotating grinding roller 6 and the fixed grinding roller 5, and the relative movement between the rotating grinding roller 6 and the fixed grinding roller 5 grinds the rubber sheet into small particles and falls on the filter On the net 9, the small particles that meet the particle size requirements fall into the finished material collection box 10 from the filter screen 9, and the large particles that do not meet the particle size requirements collect to the right along the filter screen 9 and are lifted upward by the auger 11, and then cut again. Crush and grind, and so on.

The utility model bends the rubber with the pressure plate 3 and cuts the rubber from the stretching side of the bending place, so that the rubber can be cut off very easily, thereby greatly reducing the cutting resistance of the cutter 4 and slowing down the damage of the cutter 4 and blade wear, improve cutting efficiency.

Claims (5)

1. A tire crushing device comprises a shell (1), wherein a chopping unit and a grinding unit are arranged in the shell (1), and the chopping unit is positioned above the grinding unit; the chopping machine is characterized in that the chopping unit comprises two horizontal rotating shafts (2), the two rotating shafts (2) are spaced and parallel from left to right, each rotating shaft (2) is coaxially provided with a circular pressure plate (3) and a circular cutter (4), the circular discs and the cutters (4) are alternately arranged, the pressure plates (3) and the cutters (4) are spaced, the diameter of each pressure plate (3) is larger than that of each cutter (4), and the cutter (4) on any one rotating shaft (2) is tangent to the pressure plate (3) on the other rotating shaft (2); the grinding unit comprises a fixed grinding roller (5), the left side and the right side of the fixed grinding roller (5) are respectively provided with a rotating grinding roller (6), the two rotating grinding rollers (6) are tangent to the fixed grinding roller (5), and the contact sides of the two rotating grinding rollers and the fixed grinding roller (5) rotate downwards.

2. A tyre breaking device according to claim 1, characterized in that the pressure plate (3), the cutter (4) and the rotating shaft (2) are connected by a long key (7).

3. A tyre breaking device according to claim 1, characterised in that an axial locating sleeve (8) is mounted between adjacent pressure plates (3) and cutters (4).

4. A tyre breaking apparatus according to claim 1, characterized in that a filter screen (9) is arranged at the bottom of the casing (1), and a finished material collecting box (10) is arranged below the filter screen (9).

5. The tire crushing device according to claim 4, wherein the filter screen (9) is arranged in a manner of being high at the left and low at the right, large particles which do not meet the requirement of granularity are collected towards the right side along the filter screen (9), the right side of the box body is provided with a vertical spiral auger (11), and the upper end of the spiral auger (11) extends to the upper part of the chopping unit.

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