JPH045502B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a shredding machine that shreds scrapped automobile engines, motorcycle engines, cylinder heads, transmissions, etc. as they are.

[Conventional technology]

Automobile engines are made of a combination of iron and aluminum parts, so when a scrapped engine is crushed by a crusher, a lump of iron with aluminum or a lump of aluminum with iron is created. .

[Problem to be solved by the invention]

Since such lumps cannot be sorted even with a magnetic separator, it is better to separate the aluminum and iron manually and melt them in a melting furnace, but this is very time-consuming, so it is better to just put them into the melting furnace without separating them. This is the current situation.

In view of the above-mentioned problems, an object of the present invention is to provide a crusher that can further finely crush what has been coarsely crushed by a single crusher into small pieces that can be sorted by a magnetic separator. It is something to do.

[Means to solve the problem]

In order to achieve the above object, the present invention provides a continuous crushing input chute and a re-crushing input chute adjacent to each other in the upper part of the crushing chamber, and a continuous crushing input chute and a re-crushing input chute on a plurality of rotating shafts provided in the crushing chamber. A plurality of ripper wheels for constant crushing located directly under the chute and a plurality of ripper wheels for re-shredding having teeth finer than those of the above-mentioned ripper foils located directly below the input chute for re-shredding are provided, and both rotating shafts are connected between the ripper wheels. It is provided with a driving means that drives the input object to be crushed in the direction of biting and at different rotational speeds.

[Effect]

Since this invention has the above configuration, the engine,
When materials to be crushed, such as transmissions, are fed into the crushing chamber from the input chute for continuous crushing, the materials to be crushed are caught between the ripper foils for constant crushing, are coarsely crushed, and are discharged from the discharge port at the bottom of the crushing chamber. Ru.

The discharged crushed materials are passed through a vibrating screen or trommel and sifted, the finer crushed materials are collected and sent to a magnetic separator, and the coarser crushed materials are returned to the chute for re-shredding using a return conveyor or the like.

The crushed material returned to the re-crushing chute is caught between re-crushing ripper foils having fine teeth in the shredding chamber and is finely crushed, and then discharged from the discharge port and sent to the magnetic separator.

Since most of the finely crushed materials mentioned above have iron and aluminum separated, they are automatically separated into iron and aluminum by passing them through a magnetic separator.

〔Example〕

In the embodiment shown in the drawings, 1 is a crushing chamber, which is composed of a front wall 2, a rear wall 3, and both side walls 4.
The shape is bulged outward as shown in Figure 3.

The chute above the opening at the top of the crushing chamber 1 is partitioned by a partition plate 6 and divided into a constant crushing input chute 7 and a re-crushing input chute 8.

Reference numerals 11 and 12 denote a pair of left and right rotating shafts supported by a pair of left and right bearings provided on the front wall 2 and rear wall 3, respectively.

Each chute 7 of the rotating shafts 11 and 12
A plurality of ripper foils 14 for constant crushing are fixed to the portion directly below the ripper foils 14, and an intermediate foil 16 having a plurality of recesses 15 on the outer periphery is fixed between the ripper foils 14.

A large number of teeth 1 are provided on the outer periphery of each of the above-mentioned ripper foils 14.
7, and each tooth 17 is arranged so as to face a mating intermediate foil 16 as shown in FIG.

Further, a plurality of ripper wheels 18 for re-crushing are fixed to the rotating shafts 11 and 12 directly below the input chute 8 for re-crushing.

The teeth 19 of the ripper foil 18 are finer and have a smaller pitch than the teeth 17 of the ripper foil 14, as shown in FIG. Further, as shown in FIG. 5, the ripper foils 18 are fixed in such a way that those with small diameters, those with large diameters, and those with medium diameters are alternately adjacent to each other. The diameter ripper foils 18 are made to face each other.

Reference numeral 21 in FIGS. 1 and 2 is a hydraulic motor, and this motor 21 drives a sprocket 23 via a reduction gear 22.

A sprocket 24 is fixed to the front end of the rotating shaft 12, and an endless transmission chain 25 is connected to both sprockets 23 and 24.

Further, a pinwheel 26 is fixed to the rotating shaft 12, and a gear 27 that meshes with the pinwheel 26 is fixed to the rotating shaft 11, so that the rotating shafts 11 and 12 rotate in the direction of the arrow in FIG.

Further, a safety device is provided that detects the oil pressure of the hydraulic motor 21 and stops or reverses the motor 21 when the oil pressure suddenly increases during overload.

In the above-mentioned embodiment, when an object to be crushed, such as a scrapped automobile engine, is constantly fed into the crushing input chute 7, the object to be crushed is caught between the left and right ripper wheels 14.

Since there is a difference in rotational speed between the two ripper foils 14, the object to be crushed is torn apart by the differential movement of the teeth 17 of the ripper foils 14 on both sides while being bitten between the two ripper foils 14, and is coarsely crushed and sent to the lower discharge port. is discharged from.

In the next processing step, the discharged crushed materials are sent to a mechanical sorter such as a vibrating screen or trommel, or to a manual sorting conveyor for sorting. Fine crushed materials are collected and sent to a magnetic separator by a conveyor, while coarse crushed materials are recycled. It is returned to the re-shredding input chute 8 by a conveyor or the like, and from there it is thrown between the ripper foils 18 for re-shredding.

A large number of the above-mentioned ripper foils 18 are arranged adjacent to each other and are provided with a large number of fine teeth 19, so that the re-shredded material fed therein is finely crushed and discharged from the discharge port, and is sent to the next magnetic separator. .

〔Effect of the invention〕

As described above, this invention provides a continuous crushing input chute and a re-crushing input chute adjacent to each other in the upper part of the crushing chamber, and a plurality of rotating shafts provided in the crushing chamber are positioned directly below the constant crushing input chute. A plurality of ripper foils for constant crushing are provided, and a plurality of ripper foils for re-crushing have teeth finer than the teeth of the above-mentioned ripper foils located directly below the input chute for re-crushing, and the above-mentioned two rotating shafts are connected to the ripper foils to be crushed which are inserted between the ripper foils. Since it is equipped with a drive means that drives the object in the direction of biting and at different rotational speeds, one crusher performs constant crushing as before, and then The coarse material can be returned to the re-shredding input chute for re-shredding.

Therefore, even in the case of crushed materials such as engines, for which magnetic separation was not possible with conventional crushers, the aluminum and iron can be separated into fine particles, making magnetic separation possible, making it possible to produce engines that combine aluminum and iron. Such scraps can be crushed and used effectively.

[Brief explanation of drawings]

FIG. 1 is a partially cross-sectional plan view showing an embodiment of the crusher of the present invention, FIG. 2 is a partially vertical side view of the same as the above,
FIG. 3 is a longitudinal front view of the same, FIG. 4 is a partially cutaway enlarged front view of the ripper foil for re-crushing, and FIG. 5 is a partially longitudinal side view of the same. 1... Crushing chamber, 7... Input chute for constant crushing, 8... Input chute for re-crushing, 11, 12...
... Rotating shaft, 14 ... Ripper foil for constant crushing, 1
7, 19...Teeth, 18...Ritupa foil for re-shredding.

Claims (1)

[Claims] 1. There is a constant crushing input chute at the top of the crushing chamber,
A re-crushing instep input chute is provided adjacently, and a plurality of rotating shafts provided in the crushing chamber are equipped with a plurality of constant crushing ripper foils located directly below the re-crushing input chute, and a plurality of constant crushing ripper foils located directly below the re-crushing input chute. A plurality of re-shredding ripper foils having teeth finer than the teeth of the ripper foil are provided, and driving means is provided for driving the two rotating shafts at different rotational speeds in the direction of biting the material to be shredded inserted between the ripper foils. The crusher installed.