JP2008284484A - Crushing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a crushing apparatus by which a processing work is made easy to keep the production cost saved at the time of production. <P>SOLUTION: A bearing 8 supporting a rotary shaft 5 is configured to be installed in an end plate 3 in a freely detachable manner and in the crushing apparatus 1, the rotary shaft 5 is moved along a notched part and fixed at a prescribed position in a casing 2 in a freely detachable manner in the state that the rotary shaft has the bearing 8 in both end parts. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention is a substantially bowl-shaped casing in which two end plates each having a notch that opens laterally are provided at positions opposite to each other, and two rotary shafts each having a plurality of crushing blades are: Both ends of the two end plates are rotatably supported by bearings in a state where the two end plates are opposed to each other. The two end plates are arranged substantially in parallel in the casing, and rotate in opposite directions of the two rotating shafts. In connection with this, it is related with the crushing apparatus comprised so that the crushing target object supplied in the said casing may be crushed with the said crushing blade, and the processed material after the crushing may be discharged | emitted out of a casing.

  Such a crushing device is a device for crushing and crushing by putting waste materials (crushed objects) such as plastic, paper and wood between two rotating shafts whose crushing blades rotate in opposite directions. It is used to reduce the volume of waste materials or to process recycled aggregates.

  In the conventional crushing apparatus, each bearing that supports the two rotating shafts is disposed outside the casing (a position slightly away from the casing), and the two rotating shafts are opened in the lateral direction. A crushing device is proposed that is configured so that the crushing blade can be easily maintained by being moved along the line. (See Patent Document 1)

JP 2005-296843 A

The rotating shaft of the crushing device described in the above-mentioned Patent Document 1 is supported by bearings arranged on the outside of the casing, with both ends thereof being in a state where the two notch portions of the end plates are opposed to each other, A gap formed between the rotating shaft and the notch is configured to be closed with a lid.
That is, in the conventional crushing device, in order to allow the two rotating shafts to be installed at predetermined positions without being in contact with each other, the casing end plate, the lid, and the rotating shaft are very A high degree of assembly accuracy is required, and a high degree of assembly accuracy is also required in the bearing and the installation portion where the bearing is installed.
As a result, when manufacturing a conventional crushing device, it is necessary to carry out a highly accurate machining operation especially on the end plate of the casing and the installation part of the bearing, and the manufacturing cost is low due to the difficulty of the machining operation. It was increasing.
The present invention has been made in view of the above circumstances, and provides a crushing apparatus that can be easily processed in manufacturing and can reduce manufacturing costs while maintaining high assembling accuracy.

  A first characteristic configuration of the present invention is a substantially bowl-shaped casing in which two end plates each having a notch portion that opens laterally are provided at positions facing each other. The two end plates include a plurality of crushing blades. In the state where the two rotating shafts extend across the notch portions of the two end plates facing each other, both end portions thereof are rotatably supported by bearings and are arranged substantially in parallel in the casing. A crushing device configured to crush a crushing object supplied into the casing with the crushing blade and to discharge the processed material after crushing to the outside of the casing with rotation in the opposite direction. In addition, the bearing that supports the rotating shaft is configured to be detachably installed on the end plate, and the notch is provided with the rotating shaft having the bearings at both ends thereof. Move along , In that it can be detachably fixed to a predetermined position of the casing.

[Action and effect]
In the present invention, the bearing that supports the rotating shaft is configured to be detachably installed on the end plate of the casing, so that a highly accurate machining operation is performed on the end plate of the casing during manufacturing. This saves you the trouble of machining operations and reduces costs while maintaining a high level of assembly accuracy.

Embodiments of the present invention will be described below with reference to the drawings.
Embodiment
The crushing device of the present invention is a device that throws in waste materials (objects to be crushed) such as plastic, paper, and wood, and crushes and crushes the crushing device, and is used for volume reduction or reclaimed aggregate processing of waste materials. It is done.

  As shown in FIG. 1 to FIG. 3, the crushing device 1 of the present invention is provided with a notch portion 9 that opens laterally and two end plates 3 having a plurality of bolt holes at positions facing each other in plan view. A state in which the two rotary shafts 5 (5a and 5b) having a plurality of crushing blades 6 extend over the opposite notches 9 of the two end plates 3. Thus, both end portions thereof are rotatably supported by the bearings 8 and are disposed substantially parallel and horizontally in the casing 2.

As shown in FIG. 2, the casing 2 is installed and fixed on a mount frame 13, and an input port 10 for introducing a crushing object is provided above the casing 2. A discharge port 11 for discharging the processed material is provided.
As shown in FIGS. 1 and 2, a plurality of scrapers 12 are attached to predetermined portions of the inner wall of the casing 2 to prevent the objects to be crushed that are not sufficiently crushed from being discharged from the discharge port 11. .

Moreover, as shown in FIGS. 1-3 and FIG. 5, the two end plates 3 provided in the mutually opposing position (side where the bearing 8 is located) of the casing 2 in the lateral direction are made of metal. The outer plate 14 and the metal liner 15 having wear resistance are configured in a double structure. Further, the end plate 3 is semicircular at one end and extends along each end plate 3. A notch 9 is provided that extends and opens laterally.
Further, one side wall of the casing 2 is configured as a detachable wall 4 that can be attached to and detached from the casing 2, and a plurality of scrapers 12 are attached to the inside of the detachable wall 4.

As shown in FIGS. 1, 2, and 4, each rotating shaft 5 is formed in a regular hexagonal cross-sectional shape, and a metal crushing blade 6 having a regular hexagonal opening hole and a spacer 7 are arranged every other piece. The outer fitting is fixed. As shown in FIG. 4, the crushing blade 6a is fitted and fixed to the rotating shaft 5a, and the crushing blade 6b is fitted and fixed to the rotating shaft 5b.
As shown in FIGS. 1 to 3, bearings 8 are attached to both ends of each rotating shaft 5. Further, as shown in FIG. 5, the flange portion 16 of the bearing 8 is provided with a plurality of bolt holes 17, and the bolt holes 17 are matched with the bolt holes 17 provided in the end plate 3, By screwing the bolt 18, the bearing 8 can be fixed to the end plate 3 of the casing 2.

  Although not shown, in the crushing device 1, the crushing blade 6 of the rotary shaft 5 and the crushing blade of the other rotary shaft 5 are prevented so that the rotary shaft 5 and the crushing blade 6 of the rotary shaft do not come into contact with each other. 6, between the crushing blade 6 of the rotating shaft 5 and the spacer 7 of the other rotating shaft 5, between the crushing blade 6 of the rotating shaft 5 and the liner 15 of the casing 2, and between the rotating shaft 5 and the bearing 8. A slight gap is provided between the part (other than the bearing) and the like.

(Rotation shaft assembly and removal operations)
In the crushing apparatus 1 of the present invention, the bearing 8 that supports the rotary shaft 5 is configured to be detachably installed on the end plate 3, so that the rotary shaft 5 remains bearings 8 at both ends. In this state, it can be moved along the notch 9 to be detachably fixed at a predetermined position of the casing 2.

5 (a side view of the crushing device 1) and FIG. 6 (a plan view of the crushing device 1) show an assembling operation of the rotating shaft 5 in the crushing device 1, and (a) to (c) in FIG. ) Correspond to (a) to (c) in FIG.
As shown in FIGS. 5 (a) and 6 (a), when the rotary shaft 5 is assembled to the casing 2, first, the rotary shaft 5a is inserted from the opening side of the notch 9 of the end plate 3. Then, it is moved along the notch 9 to a predetermined position at the back. When the rotary shaft 5a is moved to a predetermined position of the notch portion 9, the positions of the bolt holes 17 of the end plate 3 and the bolt holes 17 of the flange portion 16 of the bearing 8 at both ends of the rotary shaft 5a are matched. The bolt 18 is screwed into the matched bolt hole 17 to fix the rotating shaft 5a.
Next, as shown in FIGS. 5 (b) and 6 (b), the rotation shaft 5 b is similarly inserted from the opening side of the notch portion 9, and end faces of the flange portion 16 of the bearing 8 at both ends thereof. However, if it moves to the predetermined position joined with the end surface of the flange part 16 of the rotating shaft 5a fixed previously, the position of the bolt hole 17 of the end plate 3 and the bolt hole 17 of the flange part 16 of the bearing 8 will correspond. The bolt 18 is screwed into the matched bolt hole 17 to fix the rotating shaft 5b. At this time, the two rotating shafts 5a and 5b are attached so that the crushing blade 6 of one rotating shaft 5 is located between the crushing blades 6 of the other rotating shaft 5 (spacer 7).
Finally, as shown in FIGS. 5 (c) and 6 (c), when the detachable wall 4 is attached and fixed with bolts 18, the notch 9 is completely closed, and the rotating shaft 5 is assembled. Complete.

  Moreover, although not shown in figure, when it is necessary to remove the rotating shaft 5 from the casing 2 in order to perform the maintenance of the crushing blade 6, the replacement of the rotating shaft 5, etc., an operation reverse to the above-described operation may be performed. . That is, first, the bolt 18 for fixing the detachable wall 4 is removed, and the detachable wall 4 is removed. Next, the bolt 18 is removed from the flange portion 16 of each bearing 8 of the rotating shaft 5b, the bearing 8 is removed from the end plate 3, and the rotating shaft 5b is moved along the notch 9 as it is, and is extracted from the opening. Finally, the same extraction operation as that of the rotating shaft 5b is performed on the rotating shaft 5a.

(Operation of crusher)
The crushing device 1 is used by connecting a driving motor (not shown) to a coupling 19 provided at one end of each rotating shaft 5. By driving the driving motor, each rotating shaft 5 and the crushing blade 6 are As indicated by arrows in 4, the objects are rotated in directions opposite to each other, that is, in a direction in which the object to be crushed introduced from the insertion port 10 is drawn between the crushing blades 6.
As the both crushing blades 6 rotate in the opposite directions, the crushing object supplied into the casing 2 from the input port 10 is crushed as desired by the crushing blade 6, and the processed material after crushing is discharged from the discharge port 11. It is discharged out of the casing 2.

[Another embodiment]
1. The crushing apparatus of the present invention can also be configured to include a hopper part that can feed a crushing object at the inlet of the casing, if necessary, and a rotating shaft and a drive motor via a speed reducer. It is also possible to adopt a configuration in which the two are connected.

Top view of crusher Longitudinal sectional view of the crushing device at line XX in FIG. Longitudinal sectional view of the crushing device taken along line YY in FIG. Longitudinal sectional view of the crushing device taken along line ZZ in FIG. Side view of crushing device Top view of crusher

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Crushing device 2 Casing 3 End plate 4 Removable wall 5 Rotating shaft 6 Crushing blade 7 Spacer 8 Bearing 9 Notch part 10 Inlet 11 Outlet 12 Scraper 13 Base frame 14 Outer plate 14
15 Liner 16 Flange 17 Bolt hole 18 Bolt 19 Coupling

Claims (1)

In a substantially bowl-shaped casing in which two end plates each having a notch that opens laterally are provided at positions facing each other, two rotating shafts each having a plurality of crushing blades are connected to the two ends. In a state where the notch portions of the plate are opposed to each other, both end portions thereof are rotatably supported by bearings and arranged substantially in parallel in the casing, and with the rotation in the opposite direction of the two rotation shafts, A crushing device configured to crush the crushing object supplied into the casing with the crushing blade and discharge the processed product after crushing out of the casing,
A bearing that supports the rotating shaft is configured to be detachably installed on the end plate, and the rotating shaft is provided in the notch with the bearings at both ends. A crushing device that can be moved along and detachably fixed to a predetermined position of the casing.

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