JPH0742505Y2 - Biaxial shear crusher - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a biaxial shearing crusher, and more specifically to two rotary shafts, each having a plurality of cutters fixed at predetermined intervals in the axial direction, on one rotary shaft. The present invention relates to a biaxial shearing type crusher for crushing an object to be crushed by rotating the cutter in a forward and reverse direction while the blade portion of the fixed cutter is inserted into an interval of the cutter fixed to the other rotating shaft.

[0002]

2. Description of the Related Art In recent years, environmental problems have become an important issue on a global scale, and problems concerning waste disposal have become important matters. In particular, waste crushing is a very important factor because it is closely related to post-treatment.
Conventionally, as a crusher for crushing waste, there is a biaxial shearing crusher. FIG. 5 is an explanatory view for explaining the meshing state of the cutter 12, and FIG. 8 shows the conventional technique of FIG.
It is an assembly plan view seen from the direction. As shown in FIGS. 5 and 8, this crusher comprises two rotary shafts 10 each having a plurality of cutters 12 fixed to each other at a predetermined interval in the axial direction.
Crushing an object to be crushed by rotating the cutter fixed to one rotating shaft 10 in both the forward and reverse directions with the blade portion of the cutter fixed to the other rotating shaft 10 being inserted into the interval of the cutter 12 fixed to the other rotating shaft 10. You can Reference numeral 14 is a spacer that regulates the interval between the cutters 12. 30 is a cleaner,
When the rotary shaft rotates in the forward rotation direction A so as to crush the crushed object, the tip is provided with an acute angle so as to scrape off the crushed object adhering within the interval between the cutters 12. The shape of the cleaner 30 alone is shown in FIG. This crusher has no fear of explosion at the time of crushing, and is therefore widely used for crushing large-sized coarse waste, vinyl, plastic products and other crushable materials.

[0003]

However, according to the above-mentioned conventional biaxial shearing type crusher, the processing capacity is extremely small when processing difficult-to-crush materials such as vinyl and plastic, and the crushing cost is high. There is a drawback that That is, when a large amount of difficult-to-crush material is thrown into this biaxial shearing crusher at one time, the resistance to crushing of the difficult-to-crush material is high, so the resistance to forward rotation during crushing is high, and frequent reverse rotation I have no choice but to do it. In this way, if the rotation angle of the cutter becomes smaller, the difficult-to-crush products sent by the lip and compressed after shearing tend to expand and remain between the adjacent cutters, and the broken products are easily clogged between the cutters. Become. The crushed material clogged between the cutters further increases the resistance, which reduces the crushing performance and the processing capacity.

When the rotation angle of the forward / reverse rotation of the cutter is small, the conventional cleaner cannot scrape the crushed material C stuck between the cutters as shown in FIG. Crushing of the object to be crushed is not performed efficiently because, for example, the rotation of the rotary shaft is stopped due to a larger resistance being applied. Therefore, conventionally, the amount of difficultly crushed material to be charged into the biaxial shearing crusher has been limited to be small and constant. In addition, equipment was also required to put a small amount of crushed material in a constant amount. Therefore, the crushing efficiency of difficult-to-crush items is very low,
The cost for crushing was high.

The present invention has been made in view of the above problems, and an object of the present invention is to crush objects including difficult-to-crush objects such as vinyl and plastic, which have not been crushable in terms of cost. An object of the present invention is to provide a biaxial shearing type crusher capable of efficiently crushing and reducing the cost of crushing an object to be crushed.

[0006]

In order to achieve the above object, the present invention comprises the following constitution. That is, according to the present invention, two rotary shafts in which a plurality of cutters are fixed at predetermined intervals in the axial direction are used, and a blade portion of a cutter fixed to one rotary shaft is fixed to the other rotary shaft. In a biaxial shearing type crusher that crushes the object to be crushed by rotating it in both the forward and reverse directions with the blade inserted into the interval, the rotation of the blade part of the other cutter is obstructed within the interval between the cutters. It is fixedly placed on the machine frame so that it does not occur, and when both rotating shafts are rotated in the forward rotation direction in which the cutter crushes the crushed object and in the opposite direction, the cutter A cleaner having two blades for scraping the crushed material adhering to the outer periphery of the rotating shaft between them is provided with the cleaner.
Entry of crushed material where the upper part of the corner is the gap between both rotating shafts
Rotate while covering the upper side of the rotating shaft so as not to narrow the course.
The blade part of the cutter located above the shaft is
It is characterized by being exposed above the upper part .

Further, in the above-mentioned biaxial shearing crusher,
The two blades of the cleaner are formed in a shape surrounding the rotary shaft by 180 ° or more so that the cleaner has two blade portions that are close to each other within a range that does not block the entry path of the crushed object and the discharge path of the crushed object. The crushed material can be scraped more preferably, and the rotational resistance due to the crushed material can be further reduced.

[0008]

According to the biaxial shearing type crusher of the present invention, the two rotary shafts of the cleaner are provided so as not to obstruct the rotation of the blade of the cutter, so that the two rotary shafts are crushed by the cutter. When rotated in each of the normal rotation direction that rotates in the direction of crushing and the opposite direction, it is possible to scrape the crushed objects attached to the outer periphery of the rotation axis between the cutters in each direction of rotation. it can.
Also, make sure that the top of the cleaner covers the upper side of the rotary shaft and
Prevents the shredded material from being deposited on the rotating shaft
Therefore, the rotation resistance can be reduced. That
The blade of the cutter located above the rotary shaft
-Because it is exposed above the upper part of the
Accumulation above the cutter and cleaner when rolling
The crushed material can be suitably loosened. by this
It is possible to prevent the crushed object from being compressed and hardened,
When the rotating shaft rotates in the forward direction, the crushed material with an appropriate density is cut.
It can be supplied to the part where the blade part of the target meshes. For this reason, it is possible to prevent the crushed object from being clogged regardless of whether the rotating shaft rotates in the forward or reverse direction. Thereby, the rotation resistance of the rotating shaft can be reduced, and the crushed object can be efficiently crushed.

Further, since the cleaner is formed in a shape surrounding the rotary shaft by 180 ° or more so that the two blade portions of the cleaner are close to each other, when the crush resistance increases and the rotation angle of the rotary shaft decreases. Moreover, it is possible to prevent the crushed object from being clogged. Further, it is possible to reduce the rotational resistance directly applied to the rotary shaft by the crushed object that has been introduced. Thereby, the rotation resistance of the rotating shaft can be further reduced, and the crushed object can be crushed more efficiently.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the crusher according to the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is an explanatory view for explaining an embodiment of the biaxial shearing type crusher of the present invention.
[Fig. 2] is an explanatory view illustrating a single shape of a cleaner incorporated in the biaxial shearing crusher of Fig. 1. In addition, FIG.
FIG. 8 is an assembly plan view of the embodiment of FIG. 10
Is a rotating shaft, and as shown in FIG.
2 are fixed in the axial direction via a spacer 14 at a predetermined interval. The two rotary shafts 10 are arranged such that the blade portion of the cutter 12 fixed to the one rotary shaft 10 is inserted into the space between the cutters 12 fixed to the other rotary shaft 10. That is, the interval between the cutters 12 is defined by the spacer 14, and the cutters 12 fixed to the two rotating shafts 10 are provided so as to alternately overlap with each other in the axial direction and to be in sliding contact. The object to be crushed can be crushed by rotating the two rotary shafts 10 in both forward and reverse directions.

Reference numeral 20 is a cleaner, and each cutter 12
Within the space between the two rotating shafts 1 and 2, the blades of the other cutter 12 are fixedly arranged on the machine frame 16 so as not to hinder the rotation.
When 0 is rotated in each of the forward rotation direction in which the cutter 12 rotates in the direction of crushing the crushed object, and the opposite direction, the crushed object attached to the outer circumference of the rotation axis between the cutters is rotated. It has an upper blade portion 21 and a lower blade portion 22 which are scraped in the direction. The shape of the cleaner 20 alone is shown in FIG. Also,
The top of the cleaner 20 is a gap between both rotary shafts.
The upper side of the rotary shaft 10 so as not to narrow the approach path of the crushed object
Is formed so as to cover the. This allows you to cast from above.
Prevents the shredded material from depositing on the rotating shaft 10.
It is possible to reduce the rotation resistance. And times
The blade part of the cutter 12 located above the rolling shaft 10 is clean.
It is provided so that it is exposed above the upper part of the nar 20.
There is. For this reason, especially when the rotating shaft rotates in the reverse direction,
The crushed material accumulated above the cleaner and cleaner
Can be loosened. Therefore, the crushed material is compressed and solidified.
Can be prevented, and when the rotating shaft rotates forward
The part where the blade of the cutter meshes with the crushed material of appropriate density
Can be supplied to. Further, in the embodiment of FIG. 1, the cleaner 20 rotates the rotary shaft 10 so that the upper blade portion 21 and the lower blade portion 22 come close to each other within a range that does not block the entry path of the crushed material and the discharge path of the crushed material. Is formed in a shape surrounding 270 °. The upper blade portion 21
The tip of the lower blade portion 22 is formed to have an acute angle so that the crushed material attached to the outer periphery of the spacer 14 integrated with the rotating shaft 10 can be scraped off appropriately.

Next, the operating state of the biaxial shearing type crusher having the above construction will be described with reference to the drawings. The forward rotation direction of the two rotary shafts 10 is shown by an arrow A in FIG. In this way, the forward rotation direction of the two rotary shafts 10 is the rotation direction in which the crushing section by the cutter 12 in sliding contact feeds the crushed object downward and crushes the crushed object. When the crushed object to be charged is easily crushed, the two rotary shafts 10 can be continuously rotated in the forward rotation direction A at a predetermined speed to crush the crushed object.

If the object to be crushed is a hard material such as vinyl or plastic, when the rotational resistance increases during the crushing and exceeds a predetermined resistance, arrow B in FIG.
Rotate in the opposite direction as shown in. As a result, the crushed material sandwiched between the cutters 12 is sent upward, and the cutters
By the action of the blade portion 12, the crushed object is loosened, and the rotation resistance can be reduced. In this way, by rotating the rotating shaft in both forward and reverse directions and reciprocating the crushed object up and down,
Even a difficult-to-crush material can be suitably crushed. When the object to be crushed is crushed, a predetermined load is applied to the object to be crushed by a lip from above.

When the difficult-to-crush material is crushed, the cutter 1
Crushed material adheres and remains within the interval of 2. When the normal rotation angle of the rotary shaft 10 becomes small, the crushed material is likely to remain, but since the lower blade portion 22 is close to the crushed portion by the cutter 12, the remaining crushed material is as shown in FIG. The lower blade portion 22 allows quick scraping. Then, even when the rotary shaft 10 rotates in the opposite direction B, the upper blade portion 21 can quickly scrape the crushed object C so as to suitably guide the crushed object C upward. Therefore, the rotation resistance can be reduced, and the reduction of the crushing ability can be prevented.

Next, the situation when the biaxial shearing type crusher of the present invention is actually used will be described in comparison with a conventional crusher. Of the industrial waste generated in the paper manufacturing industry, a large amount of lager (lumps of waste paper with wires, vinyl strings, etc. remaining) that are said to be extremely uncrushable is thrown in at once with a wheel loader, etc. It was crushed by the biaxial shearing crusher of the present invention. The size of the crushed material after crushing is 150 mm or less including wire, and the processing capacity is 0.4 ton / hour by the conventional crusher, while the crusher of the present invention is 2.
It became 0 tons / hour. Furthermore, the intervals between the cutters were always clean, and the processing capacity did not change from the beginning to the end.

As described above, according to the biaxial shearing type crusher of the present invention, a large amount of waste containing a large amount of difficult-to-crush material can be thrown into the crusher all at once. For this reason, it is not necessary to specially provide a charging device for charging the waste in a constant amount or in small amounts, and the installation cost can be eliminated. Further, since the processing capacity is greatly improved as in the above-mentioned embodiment of the lager, the crushing cost can be reduced. Furthermore, the material to be crushed can be suitably crushed so as not to have a long object, and the processing after crushing is facilitated, so that the cost of the final processing equipment can be reduced. Although various explanations have been given above with reference to the preferred embodiments of the present invention, it is needless to say that the present invention is not limited to the above-mentioned embodiments and that many modifications can be made without departing from the spirit of the invention. Of course.

[0017]

According to the biaxial shearing type crusher of the present invention,
Regardless of whether the rotary shaft rotates in either the forward or reverse direction, the crushed material adhering to the rotary shaft can be scraped off and the crushed material can be prevented from clogging within the cutter interval. Rotational resistance can be reduced. Also, Cree
The upper part of the knuckle covers the upper side of the rotary shaft and is inserted from above.
It is possible to prevent the crushed material from accumulating on the rotating shaft.
The blade of the cutter located above the
Since it is exposed to the upper side,
The material to be crushed accumulated on the upper side is preferably loosened, and it has an appropriate density.
The crushed material can be supplied to the part where the blade of the cutter meshes.
It Therefore, the rotational resistance of the rotary shaft can be reduced. For this reason, it is possible to efficiently crush objects to be crushed, including difficult-to-crush materials such as vinyl and plastic that were previously impossible to crush in terms of cost, and reduce the cost of crushing the objects to be crushed. It has the remarkable effect of being able to. Further, since the cleaner is formed in a shape surrounding the rotary shaft by 180 ° or more so that the two blade parts of the cleaner are close to each other, even when the crush resistance increases and the rotation angle of the rotary shaft decreases, It is possible to prevent the crushed object from being clogged . This ensures that it is possible to further reduce the rotational resistance of the rotary shaft, can be carried out more efficiently crushing of the crush material.

[Brief description of drawings]

FIG. 1 is an explanatory diagram illustrating an embodiment of the present invention.

FIG. 2 is an explanatory view for explaining the cleaner alone of the embodiment of FIG.

FIG. 3 is an explanatory view explaining an operating state of the embodiment of FIG.

FIG. 4 is an assembled plan view of the embodiment of FIG.

FIG. 5 is an explanatory diagram illustrating a conventional technique.

FIG. 6 is an explanatory view for explaining the conventional cleaner alone of FIG.

FIG. 7 is an explanatory diagram illustrating an operating state of the conventional technique of FIG.

FIG. 8 is an assembled plan view of the prior art of FIG.

[Explanation of symbols]

 10 Rotating Shaft 12 Cutter 14 Spacer 16 Machine Frame 20 Cleaner 21 Upper Blade Part 22 Lower Blade Part A Forward rotation direction B Reverse rotation direction C Crushed object

Claims (2)

[Scope of utility model registration request] 1. A cutter having two rotary shafts, each of which has a plurality of cutters fixed at predetermined intervals in the axial direction, and a blade portion of the cutter fixed to one of the rotary shafts being fixed to the other rotary shaft. In a biaxial shearing type crusher that crushes the object to be crushed by rotating in both the forward and reverse directions in a state where it enters the interval, within the interval between the cutters, the obstacle of rotation of the blade part of the other cutter and It is fixed to the machine frame so that it does not occur, and when both rotary shafts are rotated in the forward rotation direction in which the cutter crushes the crushed object, and in the opposite direction, between the cutters. A crushable object having a cleaner having two blade parts for scraping the crushable object attached to the outer periphery of the rotating shaft of each of the rotating directions , and the upper part of the cleaner being a gap between the rotating shafts.
Cover the upper side of the rotating shaft so as not to narrow the approach path of
The blade part of the cutter located above the rotary shaft
A biaxial shearing crusher characterized by being exposed above the upper part of the corner . 2. The cleaner rotates the rotary shaft 18 so that the two blade portions of the cleaner are close to each other within a range that does not block the entry path of the crushed object and the discharge path of the crushed object.
The biaxial shearing crusher according to claim 1, wherein the biaxial shearing crusher is formed in a shape surrounding 0 ° or more.