CN2846089Y - Crusher for waste tyre - Google Patents

Abstract

A waste tire shredder, including a power part, the power part is connected by a motor and a reducer through a first coupling, wherein, a material shredding part is composed of driving rollers and passive rollers arranged side by side on the main frame, and the driving The roller is connected with the reducer through the second coupling, and the driven roller that can rotate freely around the axis is installed on the main frame by the bearing; there is a preset gap between the driving roller and the driven roller, and the preset gap is the active roller. The rollers carry the materials to be crushed just enough to drive the passive roller and the driving roller to roll relative to each other, and the hollow chambers of each roller body are respectively connected with the cooling system. In this case, the driving roller is connected with the reducer, and the passive roller is driven by the driving roller to carry the material to be crushed through strong friction. There will be the problem of being forced to squeeze between the two rollers, causing the equipment to stop; and there will be no deformation of the roller body or broken roller due to excessive load.

Description

Waste tire shredder

Technical field

The utility model belongs to the field of material crushing equipment, in particular to a waste crushing machine for further processing tire blocks into rubber powder and separating the rubber powder from steel wires, and is especially suitable for further crushing rubber materials such as waste tires.

Background technique

In the crushing of waste materials, the waste automobile tires are crushed as a whole to make tire blocks, which need to be further processed. The tire blocks are crushed and crushed into rubber powder by the waste tire shredder, and the rubber powder is separated from the steel wire.

Known technology such as the published Chinese patent CN200320102601.0, a kind of crushing of tough materials such as waste printed circuit boards, waste plastics, rubber and waste batteries, especially flat materials with good toughness, high hardness and not easy to bend The double-roller shear crusher is composed of a frame, a motor reducer, a coupling, a driving roller and a passive roller. The structure of the passive roller and the driving roller is exactly the same, and its surface is formed by straight teeth. The straight teeth of the rollers bite each other and move towards each other, and the bite part has a knife edge.

Another example is the published Chinese patent CN01142274.2, a rubber waste treatment equipment and a rubber waste treatment method that can effectively process rubber waste represented by old tires. The rubber waste processing equipment includes a frame; a rubber waste deforming part provided inside the frame to deform rubber waste; a gas supply part containing ozone supplied to the frame A gas containing ozone is internally supplied, wherein the rubber waste deforming part includes a pair of cylindrical shaped roller parts having a plurality of convex parts in the outward direction, and the rubber waste can be clamped in the roller part within the gap; the distance setting part, the distance setting part can set the gap distance between the above-mentioned pair of cylindrical roller parts.

The known technology has the following problems: The pulverizer usually realizes the work of crushing materials by means of two rollers moving in opposite directions through differential gear transmission. The power consumption of the motor of this equipment comes from driving the reducer, gear pair, driving roller and slave Moving roller and material load, so the power consumption is large;

The big problem in the treatment of waste materials is that materials of different textures and particle sizes are mixed together. The speed of the driven roller in the known technology is usually fixed. When the pulverizer is working, the driven roller in a constant speed state is Driven by the differential gear, since the two rollers must operate at a certain differential speed ratio, when the load exceeds the allowable value, no matter how much material is, it must be forced to pass through the gap between the two rollers, which will cause the equipment to stop. When the load is too large When the deformation of the roll exceeds the allowable value of the elastic deformation of the roll, the roll breakage will occur.

Contents of invention

The problem to be solved by the utility model is to provide a pulverizer with an improved transmission structure by overcoming the defects in the aforementioned technologies.

The utility model solves the technical problem by adopting the following technical solutions: a waste tire shredder provided by the utility model includes a power part, and the power part is connected with a reducer by a motor through a first shaft coupling, Among them, a material crushing part is composed of a driving roller and a passive roller arranged side by side on the main frame. The driving roller is connected with the reducer through a second coupling, and the passive roller that can rotate freely around the axis is driven by a bearing device. On the main frame, there is a preset gap between the driving roller and the driven roller. The preset gap is the distance between the driving roller and the material to be crushed, which can just drive the passive roller and the driving roller to roll relative to each other. The hollow chambers of the roller body communicate with the cooling system respectively.

The utility model solves its technical problem and can also take the following technical solutions for further realization:

The aforementioned waste tire shredder, wherein, the outer surface of the driving roller is provided with a material carrying structure, and the roller bodies of the driving roller and the driven roller are made of chilled cast iron.

In the aforementioned waste tire shredder, wherein, the material carrying structure of the driving roller is uniformly arranged on the outer surface of the driving roller with inclined grooves forming an angle with the center line.

The aforementioned waste tire shredder, wherein, the angle a formed between the chute and the center line is 3-5 degrees, and the cross section of the chute is a semicircular groove.

The aforementioned waste tire shredder, wherein, the bearing is a self-aligning roller bearing; the coupling is an elastic coupling.

The aforementioned waste tire shredder, wherein, the main frame is provided with reinforcing ribs.

The aforementioned waste tire shredder, wherein, the driving roller and the passive roller are both in the shape of a hollow cylinder, the outer diameter is set to 400 mm, the length is 600 mm, and the wall thickness is 70 mm; the gap is 0.25 mm. -2 mm; the cross-sectional radius of the chute is 3.5 mm; the angle a formed between the chute (2110) and the center line is 4 degrees.

The aforementioned waste tire shredder, wherein, the main frame is formed by solidly mounting δ30 plates.

In the aforementioned waste tire shredder, wherein, the roller body of the driving roller and the driven roller is chilled cast iron with a hardness of HS65-72.

Compared with the prior art, the utility model has obvious advantages and beneficial effects.

It can be seen from the above technical scheme that the utility model has at least the following advantages under the excellent structural configuration: the driving roller is set in this case to be connected with the reducer, and the passive roller is driven by the driving roller to take the material to be crushed and rotate through strong friction. Yes, the driving roller and the driven roller do not need to operate at a certain differential speed ratio, and no matter how much material there is, there will be no problem of being forced to squeeze between the two rollers to cause the equipment to stop; nor will there be any damage to the roller body due to excessive load. Deformation and roll breakage. In this case, the material crushing part is equipped with a material carrying structure of driving rollers, so that the equipment can crush and crush materials better, especially improving the adaptability of mechanical equipment to changes in material quality and quantity. This case can well adjust the uniformity of the material passing through the gap between the two rollers, effectively avoid problems such as downtime and broken rollers, and significantly improve production efficiency. The reasonable configuration of this case makes the machine body more evenly stressed, the transmission is more stable, and it is easier to install and maintain.

Compared with the prior art, the utility model has made leaping progress, and can be called a good technology with novelty, creativity and practicability.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the utility model;

Fig. 2 is a schematic diagram of the working state of the active and passive rollers in the utility model;

Fig. 3 is a schematic partial sectional view of the driving roller in the utility model.

Detailed ways

Below in conjunction with the accompanying drawings and preferred embodiments, the specific implementation, structure, features and effects provided by the present utility model will be described in detail as follows.

Referring to Figures 1-3, a waste tire shredder includes a power part 1, the power part is connected by a motor 11 through a first coupling 12 and a reducer 13, wherein,

A material crushing part 2 is composed of a driving roller 21 and a driven roller 22 arranged side by side on the main frame 20. The driving roller is connected with the reducer 13 through the second coupling 14, and the driven roller can rotate freely around the axis.

The moving roller is installed on the main frame 20 by means of a bearing, which is a self-aligning roller bearing, which can make the main shaft bear even force, drive smoothly, prolong the service life of the bearing, and facilitate installation and maintenance at the same time;

There is a preset gap 24 between the driving roller 21 and the driven roller 22, the driving roller and the driven roller all become hollow cylinders, the outer diameter is set to 400 millimeters, the length is 600 millimeters, and the wall thickness is 70 millimeters; each roller The hollow chambers of the body are communicated with the cooling systems 23 and 23a respectively, and cooling water is introduced for cooling; the driving roll and the passive roll are made of chilled cast iron, especially chilled cast iron with a hardness of HS65-72;

The main frame 20 is welded with a δ30 sheet material, and a reinforcing rib 201 is provided to allow a small amount of deformation of the frame during work, so that the main frame is like a spring frame carrying the driving roller and the passive roller. When the material crushing part is overloaded , the main frame with strong elasticity can effectively buffer, avoiding the phenomenon of roller breakage and equipment parking due to overload; the coupling described is an elastic coupling. Radial movement occurs under force. At this time, the coaxiality of the shaft connected with the coupling will change. Due to the action of the elastic body in the coupling, the coupling can automatically buffer, so it can protect important parts from being damaged. ;

The gap is related to the particle size of the material to be crushed, and the gap is set at just enough to allow the material to be crushed to pass through the rolling and rubbing of the active roller and the passive roller to be crushed into a particle size that meets the requirements and then fall; 0.25-2mm;

The outer surface of the driving roller is provided with a material carrying structure 211. When the material falls from the hopper, it gathers between the driving roller and the passive roller, and the driving roller with the material carrying structure forms a strong friction with the passive roller with the material and the passive roller Relatively rolling, the action of rolling, squeezing, grinding and rubbing is naturally formed between the driving roller and the passive roller to achieve the purpose of crushing the material; the material carrying structure of the driving roller is uniformly arranged on the outer surface of the driving roller to form an angle with the center line The chute 2110, the angle a formed between the chute and the center line is 3-5 degrees, especially the angle a is 4 degrees, at this time the force on the driving roller is the most reasonable, and the cross section of the chute is a semicircle shaped groove; the cross-sectional radius of the chute is 3.5 mm; the active roller with the chute structure and the passive roller with the smooth roller structure can crush objects well.

Because the passive roller itself does not rotate, when the material flows into the gap between the two rollers, the active roller carries the material to drive the passive roller to rotate, so that the passive roller is driven by the friction of the material, and the amount of the material passing through the gap between the two rollers per unit time is changed. , In addition, there are differences in the materials themselves (sometimes there are many blocks, sometimes there are many steel wires, and sometimes there are many rubber powders), so the passive roller is in an unstable variable speed state when working. Of course, the rotational speed of the passive roll is always lower than that of the active roll, thus forming a rotational speed difference between the two rolls. The structure of this case enables the equipment to well realize the rolling and crushing of materials with different textures and particle sizes by the roller body. Compared with the conventional crusher, the output of rubber powder in this case can be increased by 20%. The number of stops can be reduced by 80%, and the power consumption can be reduced by 10%.

The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the utility model, All still belong to within the scope of the technical solution of the utility model.

Claims (9)

1. junked tire pulverizer, comprise power part (1), described power part is connect by first shaft coupling (12) and reductor (13) by motor (11), it is characterized in that, one material pulverizing portion (2) by and drive roll (21) and the driven roll (22) of arranging device on main frame (20) form, described drive roll connects by second shaft coupling (14) and reductor (13), the driven roll that can freely rotate around the axle center by bearing arrangement on main frame (20); Leave default gap (24) between drive roll and the driven roll, described prepsetting gap amount is that the drive roll winding and treated that comminuting matter exactly can drive the relative distance of rolling stone roller with drive roll of driven roll, the hollow chamber of each roll body respectively with cooling system (23,23a) UNICOM.

2. junked tire pulverizer as claimed in claim 1 is characterized in that, described drive roll outer surface is provided with material and carries structure (211), and the roll body of drive roll and driven roll is a chilled cast iron.

3. junked tire pulverizer as claimed in claim 1 or 2 is characterized in that, it is skewed slot at uniform setting of drive roll outer surface and center line angulation that the material of described drive roll carries structure.

4. junked tire pulverizer as claimed in claim 3 is characterized in that, described skewed slot (2110) is the 3-5 degree with center line angulation a, and described skewed slot cross section is a semi-circular groove.

5. junked tire pulverizer as claimed in claim 4 is characterized in that, described bearing is a self-aligning roller bearing; Described shaft coupling is a yielding coupling.

6. junked tire pulverizer as claimed in claim 5 is characterized in that, reinforcement (201) is set on the described main frame (20).

7. junked tire pulverizer as claimed in claim 6 is characterized in that, described drive roll and driven roll all become the drum of hollow, and external diameter is set to 400 millimeters, and length is 600 millimeters, and wall thickness is 70 millimeters; Described gap value is 0.25-2mm; The cross section radius of skewed slot is 3.5 millimeters; Described skewed slot (2110) is 4 degree with center line angulation a.

8. junked tire pulverizer as claimed in claim 7 is characterized in that, described main frame (20) installs formation for the sheet material of δ 30.

9. junked tire pulverizer as claimed in claim 8 is characterized in that, the roll body of described drive roll and driven roll is that hardness is the chilled cast iron of HS65-72.

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