DE202023001737U1 - Single-shaft shredding device with floating screen basket - Google Patents

Abstract

Single-shaft shredding device with floating sieve basket (1), consisting of the basic components chopper (2), side walls (3), tool shaft (4) and sieve basket (5), with the two side walls (3) each connected to the chopper (2) at the upper ends. and the sieve basket (5) is movably connected on two sides to the lower end of the two side walls (3) in such a way that a pivoting movement can be carried out.

Description

The invention relates to a single-shaft shredding device with a floating sieve basket for use in shredding machines for recycling material, such as metal scrap, car bodies, car tires, bulky and commercial waste, household waste, textile bales, wood, waste wood, green waste, etc. to reduce the volume and split the material in preparation for an effective recycling process the features from the preamble of claim 1.

Various shredding devices, in different designs, with one or more tool shafts are known from the prior art, which work with a sieve basket permanently installed under the tool shafts.

Furthermore, shredding devices are known which work without a sieve basket, the shredding taking place, for example, between several rotating tool shafts, between the tool shaft and the side wall or between the tool shaft and a cutting bar.

The invention is based on the object of feeding the material to be shredded to the rotating shredding shaft through the movement of the appropriately arranged sieve basket in such a way that shredding can take place and despite the use of only one shredding shaft, the entire width of the sieve basket can be used for shredding can.

Furthermore, the device can work similarly efficiently compared to known shredding devices with several tool shafts, but one tool shaft can be saved. In addition, the gear that drives the tool shaft can be made simpler and more cost-effective with a tool shaft. In addition, hydraulic pumps and hydraulic motors can be saved.

Otherwise, the pivoting movement should ensure that no shredding material can settle in the corners between the sieve basket and the side wall, which cannot be reached by the shredding shaft and therefore cannot be shredded.

This object is achieved according to the invention by designing the single-shaft shredding device with a floating screen basket with the features according to claim 1.

Advantageous embodiments of the invention are the subject of the subclaims.

A single-shaft shredding device according to the invention with a floating sieve basket essentially consists of a chipper in which a tool shaft designed for the purpose is arranged to rotate in such a way that, connected to a corresponding drive unit, it can carry out a rotational movement. In the chipper, a screen basket is mounted over two side walls that are movably connected to the chipper so that the screen basket can be swiveled sideways. For this purpose, the side walls are preferably moved by hydraulic cylinders attached accordingly. The sieve basket is designed in such a way that the movement curve created by the suspension during the pivoting movement is compensated for by the shape of the sieve basket and so the distance between the shredding shaft and the sieve basket remains relatively the same in every position. This allows a consistent shredding result of the material to be shredded to be achieved and prevents the sieve basket from hitting the tool shaft. By pivoting the sieve basket and the side walls, material is constantly fed to the shredding shaft, so that the material is shredded.

In contrast to single-shaft shredding devices known from the prior art, it is possible to use a larger feed volume. Compared to conventional two- or multi-shaft shredding devices, additional tool shafts and drive technology, such as gearboxes, hydraulic pumps and motors, can be saved with the same throughput volume. In addition, the comminution space formed between the side walls and the screen basket can be better utilized by feeding the corners in which uncomminuted material can accumulate in known comminution devices to the rotating comminution shaft.

Exemplary embodiments of the invention are explained in more detail below with reference to drawings.

• 1 schematisch eine Querschnittsdarstellung einer Einwellenzerkleinerungseinrichtung mit schwebendem Siebkorb, in Mittelstellung, entlang der Schnittlinie I - I in 4.
• 2 schematisch eine Querschnittsdarstellung einer Einwellenzerkleinerungseinrichtung mit schwebendem Siebkorb, in äußerst rechter Auslenkung, entlang der Schnittlinie II - II in 5.
• 3 schematisch eine Querschnittsdarstellung einer Einwellenzerkleinerungseinrichtung mit schwebendem Siebkorb, in äußerst linker Auslenkung, entlang der Schnittlinie III -III in 6.
• 4 schematisch eine Darstellung einer Einwellenzerkleinerungseinrichtung mit schwebendem Siebkorb, in Mittelstellung, in einer Ansicht von oben.
• 5 schematisch eine Darstellung einer Einwellenzerkleinerungseinrichtung mit schwebendem Siebkorb, in äußerst rechter Auslenkung, in einer Ansicht von oben.
• 6 schematisch eine Darstellung einer Einwellenzerkleinerungseinrichtung mit schwebendem Siebkorb, in äußerst linker Auslenkung, in einer Ansicht von oben.
• 7 schematisch eine perspektivische Querschnittsdarstellung einer Einwellenzerkleinerungseinrichtung mit schwebendem Siebkorb, in äußerst rechter Auslenkung in 2.
• 8 schematisch ein Siebkorb in perspektivischer Darstellung.
• 9 schematisch eine Seitenwand in perspektivischer Darstellung.

Show in it:

• 1 schematically a cross-sectional view of a single-shaft shredding device with a floating screen basket, in the middle position, along the section line I - I in 4 .
• 2 schematically a cross-sectional view of a single-shaft shredding device with a floating screen basket, in the extreme right deflection, along the section line II - II in 5 .
• 3 schematically a cross-sectional view of a single-shaft shredding device with a floating screen basket, in the extreme left Deflection, along the section line III -III in 6 .
• 4 schematically a representation of a single-shaft shredding device with a floating screen basket, in the middle position, in a view from above.
• 5 schematically a representation of a single-shaft shredding device with a floating screen basket, in the extreme right deflection, in a view from above.
• 6 schematically a representation of a single-shaft shredding device with a floating screen basket, in the extreme left deflection, in a view from above.
• 7 schematically a perspective cross-sectional view of a single-shaft shredding device with a floating screen basket, in the extreme right deflection 2 .
• 8th schematically a sieve basket in perspective view.
• 9 schematically a side wall in perspective view.

Corresponding lines are provided with the same reference numbers in all figures.

REFERENCE SYMBOL LIST

1

Single-shaft shredding device with floating screen basket

2

Chipper

3

Side wall

4

tool shaft

5

Strainer basket

6

Hydraulic cylinder

The 1 until 7 show different views of a shredding device with a floating sieve basket (1). in an exemplary embodiment. The 8th and 9 show examples of a sieve basket (5) and a side wall (3).

The shredding device with a floating sieve basket (1), as in 1 until 7 shown, essentially consists of a chipper (1), in which a sieve basket (5) is connected to the side walls (3) and the chipper (2) in such a way that the side walls (3) and the sieve basket (5) with the help of Hydraulic cylinders (6) from the extreme right position, as in 2 and 5 , in the extreme left position, as in 3 and 6 , and can be swiveled back.

The tool shaft (4) is mounted in such a way that, driven by an appropriate drive unit, it can carry out a rotational movement about its longitudinal axis in both directions of rotation.

During the shredding process, material is constantly fed to the rotating tool shaft (4) by constantly pivoting the sieve basket (5) between the two outer positions.

Cutting and crushing the material between the edges of the shredding shaft and the screen basket results in the material being shredded. The shredded material falls through the recesses formed in the sieve basket (5), with the size of the openings determining the size of the shredded end product.

Furthermore, the screen basket (5) is shaped so that its contour follows the movement curve on the side facing the tool shaft, so that the distance between the tool shaft (4) and the screen basket (5) is approximately the same in every position of the pivoting movement. Deviations are due to manufacturing tolerances.

The side walls (3) are as in 9 , designed at the upper end in such a way that they can be movably connected to the chipper (2) by hanging them. At the lower end there are recesses on the side walls (3) so that the sieve basket (5), as in 8th shown, can be movably hung using suitable hooks designed on the sides.

Claims (4)

Single-shaft shredding device with floating sieve basket (1), consisting of the basic components chopper (2), side walls (3), tool shaft (4) and sieve basket (5), with the two side walls (3) each connected to the chopper (2) at the upper ends. and the sieve basket (5) is movably connected on two sides to the lower end of the two side walls (3) in such a way that a pivoting movement can be carried out. Single-shaft shredding device with floating screen basket (1). Claim 1 , characterized in that the contour of the sieve basket (5) towards the tool shaft (4) is designed in such a way that it follows the line of movement of the pivoting movement, and thus maintains a relatively equal distance from the tool shaft (4) in every position during the pivoting movement. Single-shaft shredding device with floating screen basket (1). Claim 1 and 2 , characterized in that the side walls (3) are shaped at the upper end so that they pass through can be movably connected to the chipper (2) by simply hanging it up. Single-shaft shredding device with floating screen basket (1). Claim 1 until 3 , characterized in that the side walls (3) at the lower end and the sieve basket (5) on the sides are shaped in such a way that the sieve basket (5) can be movably connected to the side walls (3) by hooking.

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