JPH07847A - Coarse article crushing apparatus - Google Patents

Abstract

PURPOSE:To simplify the structure and curtail the cost of a crushing apparatus by making one of rollers as an upper part crushing roller and making the other as a large number of fixed semi-circular crushing blades. CONSTITUTION:One upper part crushing roller 3, a upper part fixed crushing blade part 4 put on the opposite to the roller, and a lower part crushing roller 5 installed below them are installed in the upper part of a box 2 whose upper side and lower side are opened. The upper part crushing roller 3 is provided with screw-like unit crushing blades 3a, 3b which are twisted from the central part to the right and the left in the opposite transporting direction respectively. The upper part fixed crushing blade part 4 has semi-circular crushing blades 10 at a prescribed distance and is put almost in parallel to the upper part crushing roller 3 and attached to a fixing stand 11 while being set on the opposite to the upper crushing roller. The crushing blades 10a, 10b of the fixed crushing blade part 4 have coarse article holding function and the crushing blades 3a, 3b crush the coarse articles when the blades pass the crushing blades 10a, 10b, respectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a coarse material crushing device for crushing coarse materials such as waste wood, municipal waste, and industrial waste.

[0002]

2. Description of the Related Art An example of the above-mentioned coarse crushing device is shown in FIGS. The coarse-sized crushing device 50 rotatably houses a pair of upper crushing rollers 52 and 53 in a housing 51 substantially in parallel. Each of the crushing rollers 52, 53 is provided with screw-shaped crushing blades 52a, 52b and 53a, 53b having different twist directions from the substantially central portion on both sides. However, the crushing blade 5 facing each of the crushing rollers 52 and 53
2a, 53a and 52b, 53b are twisted in opposite directions, and both crushing rollers 52, 53 are rotated in opposite directions and in a direction in which a coarse material to be fed is bitten. As a result, the crushing rollers 52, 53 have a feeding action toward the left and right central portions respectively, and at the same time, the crushing rollers 52, 53
Of the screw crushing blades as shown in FIG.
Difference and between S2 and S4.

As a result, as the crushing blades 52 and 53 rotate, coarse particles are gathered together in the center, but the feed speeds S1 and S2 of one crushing roller 52 are the other.
Of the crushing blades 52a, 52b are provided with cutting blades in the traveling direction thereof, and 53a, 53a,
53b is provided with a cutting blade on the side opposite to the advancing direction of the crushing roller 53 so that the crushing blades 53a and 53b of the crushing roller 53 can be moved.
The second crushing blades 52a, 52b pass and are crushed, and the crushed material that has been crushed and dropped has a mesh by the main crushing blades 54a, 54b with a fine lead angle and the auxiliary crushing blades 54c, 54d with a rough lead angle. The lower crushing roller 54 and one of the upper crushing rollers 54 to be formed further finely crushes in the same manner as described above.
The coarse crushed material protruding from the crushing blades 54a and 54b of No. 4 is cut by the fixed knife 58, and the crushing blades 54a and 54b are cut.
Only the finely crushed material inside is discharged downward.

[0004]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
In order to drive the forward, reverse, and variable speeds of the motors 2, 53, and 54, the drive mechanism 5 including, for example, a hydraulic motor or the like is used.
5, 56, 57 must be provided. For this reason, there are problems that the power consumption is large, the hydraulic pump becomes large, and the entire apparatus becomes large and expensive. Further, in the case of a soft material such as a futon or a carpet, since the upper crushing rollers 52 and 53 both act in the pulling direction, there is a problem that the upper crushing rollers 52 and 53 are not sufficiently crushed and discharged. In view of these points, the present invention has an object to provide a coarse-material crushing device that can be provided at a low cost with a simplified configuration.

[0005]

SUMMARY OF THE INVENTION To achieve the above object, a coarse-sized crushing device of the present invention is provided with one upper crushing roller, an upper fixed crushing blade member facing the upper crushing roller, and below them. The upper crushing roller and the lower crushing roller are each equipped with a screw-shaped crushing blade and rotated, and the upper fixed crushing blade member has a plurality of semicircular crushing blades at predetermined intervals. It is characterized in that it is attached in parallel to each other and is attached to a fixed base so as to face the upper crushing roller.

[0006]

[Operation] The coarse material supplied is crushed by biting between it and the fixed blade as the upper crushing roller rotates. At this time, since the fixed blade is formed in a semi-circular shape, the supplied coarse material is smoothly transferred to the side where it is meshed with the rotating upper crushing roller, and the coarse material is crushed again by the lower crushing roller.

[0007]

Embodiments FIGS. 1 and 5 show a first embodiment of the present invention. This coarse-sized crushing device 1 has one upper crushing roller 3 in the upper part of a housing 2 which is opened at the top and bottom, an upper fixed crushing blade member 4 arranged to face the upper crushing roller 3, and a lower part arranged below them. It comprises a crushing roller 5. Reference numerals 6 and 7 denote driving mechanisms such as hydraulic motors for the upper crushing roller 3 and the lower crushing roller 5, respectively. The upper crushing roller 3 is provided with screw-shaped unit crushing blades 3a and 3b each having a twist in which the feed direction is reversed from the center to the left and right. However, when the crushing roller 3 rotates in the coarse material biting direction, each unit crushing blade is formed in a direction to push the coarse material toward the central portion, and a cutting blade is provided on the advancing direction side thereof. In addition,
Each crushing blade 3a, 3b forms a rake angle,
Since this is a well-known structure, its explanation is omitted.

In the upper fixed crushing blade member 4, semicircular crushing blades 10 are arranged substantially in parallel with the upper crushing roller 3 at a predetermined interval, and the crushing blade 10 is mounted on the fixed base 11 so as to face the upper crushing roller. . In this case, the crushing blades 10 are left and right unit crushing blades 10a, 10b in which coarse particles sent by the crushing blades 3a, 3b of the crushing rollers 3 facing each other are arbitrarily inclined to be inclined α.
Here is an example. As shown in FIG. 5, each crushing blade has a rake angle β with respect to the feeding direction of the upper crushing roller 3, and a cutting edge 10c is formed at the tip thereof. However, although the drawing shows a cross-sectional view of one unit crushing blade 10b, the same rake angle is also given to the other unit crushing blade 10a in the feeding direction (reverse direction) by the upper crushing roller 3. The crushing blades 10a and 10b may have an integral structure, but in order to facilitate installation adjustment and replacement, the drawing shows that the crushing blades 10a and 10b are divided into a plurality of unit members 4a, 4b, and 4c (fixing table). 11 shows a structure adapted to be attached to 11.

The lower crushing roller 5 is composed of left and right unit crushing blades 12a and 12b which are divided in the central portion, and the respective unit crushing blades 12a and 12b face the upper crushing roller 3 and have the same feed direction. An example is shown in which the main crushing blades 13a and 13b having a small lead angle and the auxiliary crushing blades 14a and 14b having a rough lead angle are used as cross-type crushing blades. The lower crushing roller 5 rotates in the same direction as the upper crushing roller 3 as shown in FIG.
The main crushing blades 13a and 13b accompanying the rotation feed the coarse material in the same direction as the upper crushing roller 3 toward the left and right central portions. In the figure, 8 is a fixed knife,
9 indicates an auxiliary knife, respectively.

The coarse particles supplied in the above-mentioned structure are gathered together in the central portion as the upper crushing roller 3 rotates, but have a function of holding the coarse particles by the crushing blades 10a and 10b of the fixed crushing member 4. When the crushing blades 3a and 3b pass through the crushing blades 10a and 10b, respectively, the coarse material is crushed. Further, the crushing blades 10a and 10b are provided with an inclination angle α and a rake angle β so that the crushing blade 3 of the upper crushing roller 3
a, 3b and the crushing blades 13a, 13b of the lower crushing roller can be kept for a long time for the cutting blades of the crushing blades to meet with each other, and the coarse material can be finely sheared and crushed.

The coarse crushed material crushed by both upper crushing blades is rotated by the lower crushing roller 5, and the upper fixed crushing blade member 4 is rotated.
The parts that are crushed again by and are protruded from the main crushing blades 13a and 13b and the auxiliary crushing blades 14a and 14b are cut by the fixed knife 8, and only the minute crushed materials in the crushing blades are discharged downward.

Next, FIGS. 6 to 9 show a second embodiment. In the first embodiment described above, the semi-circular crushing blade of the upper fixed crushing blade portion 4 is attached with the left and right sides inclined in the opposite directions from the central portion by α, but in the coarse material crushing device 20 of this embodiment. The upper fixed crushing blade member 21 has a large number of semicircular crushing blades 21a in a vertical direction, that is, orthogonal to the axis of the crushing blade member 21, and is arranged in parallel with the upper crushing roller 3 at a predetermined interval. ,
The structure in which this is attached to the fixed base 22 is shown. Similar to the previous example, each crushing blade has a rake angle β with respect to the axial movement of a coarse object by the upper crushing roller 3, and the cutting edge 21c is provided at the tip thereof.
To form. However, also in the case of the present embodiment, rake angles in opposite directions are given to the left and right from the central portion corresponding to the crushing blades 3a and 3b of the upper crushing roller 3. Note that the upper fixed crushing blade portion 21 of this embodiment may also have an integrated structure as in the previous example, but in order to facilitate installation adjustment and replacement, the crushing blades 21a are separately attached to the fixed base 22 in the figure. The structure shown in FIG. In addition, the upper crushing roller 3, the lower crushing roller 5 and the like have the same structure as in the previous example, and the same reference numerals are given to the same parts and the description thereof will be omitted.

The crushing procedure of the coarse object in this embodiment is that the crushing blade 3a of the scribe-shaped upper crushing roller 3 is replaced by a vertical fixed blade instead of the inclined semicircular fixed blade of the preceding example. Since the cutting action is almost the same, the description is omitted.

[0014]

As described above, according to the present invention, one of the upper crushing rollers is used as the upper crushing roller and the other is fixed as a number of semicircular crushing blades. The hydraulic pump for the device has a small capacity, and the device as a whole can be provided in a small size and a light weight at a low cost. In addition, the crushing blade of the upper fixed crushing blade member has a semi-circular fixed structure, so it has less pulling action on soft objects such as futons and carpets as in the past and grips and guides coarse objects, so sufficient crushing is possible. As well as being performed, the crushing with the lower crushing roller can be effectively performed again.

[Brief description of drawings]

FIG. 1 is a plan view of a first embodiment.

FIG. 2 is a sectional view taken along the line AA in FIG.

FIG. 3 is an explanatory view showing a front view of an upper fixed crushing blade member and a lower crushing roller along a line BB in FIG.

FIG. 4 is a front view of an upper fixed crushing member.

5 is a cross-sectional view taken along the line C-C in FIG.

FIG. 6 is a plan view of the second embodiment.

FIG. 7 is a sectional view taken along the line DD in FIG.

FIG. 8 is a front view of an upper fixed crushing blade member of the second embodiment.

9 is a sectional view taken along the line EE in FIG.

FIG. 10 is a plan view of a conventional coarse-material crushing device.

11 is a cross-sectional view taken along the line FF in FIG.

FIG. 12 is a front view of a lower crushing roller in a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Coarse object crushing device 3 Upper crushing roller 4 Upper fixed crushing blade member 5 Lower crushing roller 10 Upper fixed crushing blade member crushing blade 20 Coarse object crushing device 21 Upper crushing blade member 21a Upper crushing blade member crushing blade

Claims (1)

[Claims] 1. An upper crushing roller, an upper fixed crushing blade member facing the upper crushing roller, and a lower crushing roller disposed below the upper crushing roller, wherein the upper crushing roller and the lower crushing roller are respectively screw-shaped. In addition to being rotated with the crushing blades, the upper fixed crushing blade member has a large number of semicircular crushing blades arranged in parallel at predetermined intervals, and is attached to a fixed base facing the upper crushing rollers. An oversized crushing device.