JPH01270951A - Crusher - Google Patents

Abstract

PURPOSE:To prevent the generation of resistance by crushed pieces by a method wherein an intermediate wheel, which has a diameter smaller than that of each of ripper wheels, is interposed between the ripper wheels to allow the teeth of the partner ripper wheels to approach the outer periphery of the intermediate wheel and recessed parts are provided to the outer periphery of the intermediate wheel. CONSTITUTION:A plurality of rotary shafts 11, 12 having different rotational speeds are provided in a crushing chamber 1 and a plurality of ripper wheels 14 are respectively fixed to the rotary shafts. An intermediate wheel 16 having a diameter smaller than that of each of the ripper wheels 14 is interposed between the ripper wheels 14 and the teeth 17 of the partner ripper wheels are allowed to approach the outer periphery of the intermediate wheel 16 and many recessed parts 15 are provided to the outer periphery of the intermediate wheel 16 at a proper interval. As a result, even when crushed pieces enter the nips of the ripper wheels and the intermediate wheel, no large resistance is generated.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention is applicable to, for example, scrapped light car engines, motorcycle engines (all from which starter motors, dynamos, and carburetors have been removed), cylinder heads, transmissions, etc. The present invention relates to a crusher that crushes materials to be crushed by inputting them as they are.

[Conventional technology]

The object to be crushed as described above is quite large, and in order to crush it by biting it between the ripper foils, an intermediate foil is interposed between the ripper foils, and the teeth of the other ripper foil are placed around the outer periphery of this intermediate foil. You have to try to get close.

[Problem to be solved by the invention]

If the intermediate foil is interposed between the ripper foils as described above, during operation, the crushed pieces may be caught between the teeth of the ripper foil and the outer circumferential surface of the intermediate foil, creating a large resistance. There was a problem in that the crushing efficiency was reduced because the machine had to be stopped or reversed.

SUMMARY OF THE INVENTION In view of the above problems, it is an object of the present invention to provide a crusher that does not cause large resistance even if crushed pieces get stuck between the ripper foil and the intermediate foil.

[Means to solve the problem]

In order to achieve the above object, the present invention provides a crusher in which a plurality of rotating shafts with different rotational speeds are provided in a crushing chamber, and a plurality of ripper foils are respectively fixed to each of the rotating shafts.
An intermediate foil having a smaller diameter than the ripper foil is interposed between each ripper foil, and the teeth of the other ripper foil are brought close to the outer periphery of the intermediate foil, and a plurality of recesses are formed at appropriate intervals on the outer periphery of the intermediate foil. It was established.

[Effect]

Since this invention has the above-mentioned configuration, when objects to be crushed, such as engines and transmissions, are put into the crushing chamber, the crushed objects are always caught between the crushing ripper foils and coarsely crushed, and are then crushed through the outlet at the bottom of the crushing chamber. is discharged from.

Even if the crushed pieces generated by crushing between the ripper foils as described above enter between the teeth of the ripper foil and the intermediate foil, some or all of the crushed pieces will enter the recesses on the outer periphery of the intermediate foil, so the ripper foil and the intermediate There is no risk that the crushed material will be caught between the outer circumferential surfaces of the foils and create a large resistance.

〔Example〕

The embodiment shown in the drawings is implemented in a crusher having an input chute for constant crushing and an input chute for re-crushing. In this figure, reference numeral 1 denotes a crushing chamber, which is composed of a front wall 2, a rear wall 3, and both side walls 4, and both side walls 4 have a shape that bulges outward as shown in FIG.

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

A plurality of ripper wheels 14 for continuous crushing are fixed to the portions of the rotating shafts 11 and 12 located directly below the chutes 7, and between each of the ripper wheels 14, as shown in FIGS. 4 and 5, An intermediate foil 16 having a plurality of recesses 15 on its outer periphery is fixed.

A large number of teeth 17 are provided on the outer periphery of each ripper foil 14, and each tooth 17 is connected to the mating intermediate foil 16 as shown in FIG.
It is placed so as to face the

In addition, a rotating shaft 11 directly below the re-crushing input chute 8
．． A plurality of ripper wheels 18 for re-crushing are fixed to 12.

The teeth 19 of the ripper foil 18 are finer and have a smaller pitch than the teeth 17 of the ripper foil 14.

Moreover, the ripper foils 18 are fixed in such a way that those with small diameters and those with large diameters are alternately adjacent to each other, and the ripper foil 18 with a small diameter is made to correspond to the ripper foil 18 with a large diameter on the other side.

21 in FIGS. 1 and 2 is a hydraulic motor, and this motor 21
Accordingly, the sprocket 23 is driven via the reduction gear 22.

24 is a sprocket 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 pin wheel 26 is fixed to the rotating shaft 12, and a gear 27 that meshes with the bottle wheel 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.

In the embodiment, the diameter of the ripper foil 14 is 1400mm, the outside of the intermediate foil 16 is 970mm, the depth of the recess 15 is 105mm,
The diameter of the ripper foil 18 is large 12651, small 1145m5
, the distance between the rotating shafts 11 and 12 is 1235g1m, the rotating shaft 11 rotates at 0.6 RPM, and the rotating shaft 12 rotates at 1.2 PPM.

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 embodiment, the material to be crushed, such as a scrapped light vehicle engine, is constantly fed into the crushing chute 7.
When the material to be crushed passes through the left and right ripper foils 14
Caught in between.

Since the above ripper wheels 14 have different rotational speeds,
While being caught between both ripper wheels 14, the object to be crushed is torn by the differential movement of the teeth 17 of the ripper wheels 14 on both sides, and is roughly crushed and discharged from the lower discharge port.

When the crushed pieces generated by the above-mentioned crushing enter between the ripper foil 14 and the intermediate foil 16, the negative part or the whole enters the recess 15, and when the recess 15 faces downward, the crushed pieces fall.

The discharged crushed materials are sent to the next vibrating screen or trommel and sieved, fine crushed materials are collected and sent to a magnetic separator using a conveyor, etc., and coarse crushed materials are sent to a re-shredding chute 8 using a return conveyor etc. It is then returned and placed between the ripper foils 18 for re-shredding.

A large number of the above-mentioned ripper foils 18 are provided 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, in this invention, an intermediate foil having a smaller diameter than the ripper foil is interposed between each ripper foil in the crushing chamber, and the teeth of the other ripper foil are brought close to the outer periphery of the intermediate foil, and the outer periphery of the intermediate foil is is provided with multiple recesses at appropriate intervals, so if crushed pieces generated during the crushing operation get between the teeth of the ripper foil and the outer periphery of the intermediate foil, if the crushed pieces are small, the intermediate foil It enters the recess in the foil and moves downward, and when the recess turns downward, it falls into the outlet, so there is no resistance.

In addition, if the crushed pieces that have entered the recess are large, a part of them will protrude to the outer periphery of the intermediate foil, but this protruding part will be torn off by the teeth of the ripper foil and crushed, rotating downward and being ejected. Therefore, there is no fear that the crushed pieces would be caught between the teeth of the ripper foil and the outer periphery of the intermediate foil, creating a large resistance as in the conventional case.

[Brief explanation of the drawing]

Fig. 1 is a partially cross-sectional plan view showing one embodiment of the crusher of the present invention, Fig. 2 is a partially longitudinal side view of the same as the above, Fig. 3 is a longitudinal front view of the same, and Fig. 4 is an enlarged view of the intermediate foil. A vertical front view, and FIG. 5 is an enlarged vertical side view of the same. 1... Crushing chamber, 14... Ripper foil for constant crushing, 15...
... recess, 16 ... intermediate foil,
17...Teeth. Procedural amendment (view date 1, indication of the case 1988 Patent Application No. 100675 2, name of the invention crusher 3, person making the amendment Relationship to the case Patent applicant □□□) Contents of the amendment 1, specification In line 14 of page 1 and lines 8 to 9 of page 6, the words "light vehicle" will be corrected to "automobile." 2. Page 1, lines 15 to 166: “(None of these...
...removed)". 3. Delete "In the example...rotation" from line 19 on page 5 to line 4 on page 6. 4. On page 7, lines 1 to 2, “Next...
” is corrected as follows. ``As the next processing step, it is sorted by mechanical sorting such as a vibrating sieve or trommel, or by being sent to a manual sorting conveyor.''

Claims (1)

[Claims] (1) In a crusher in which a plurality of rotating shafts with different rotational speeds are provided in the crushing chamber and a plurality of ripper foils are fixed to each of the rotating shafts, an intermediate foil having a smaller diameter than the ripper foil is interposed between each ripper foil. At the same time, bring the teeth of the opponent ripper foil closer to the outer periphery of the intermediate foil,
Moreover, the crusher has a plurality of recesses provided at appropriate intervals on the outer periphery of the intermediate foil.