JPH0742381A - Crusher-cutter - Google Patents

Abstract

PURPOSE:To enable reinforcing bars, steel frames and pipes that are the debris of a dismantled concrete, or steel, structure to be cut very efficiently. CONSTITUTION:A fixed jaw main body 2 having a fixed-jaw-side cutting body Cf formed thereon and a movable jaw main body 3 having a movable-jaw-side cutting body Cm formed thereon are allowed to freely open and close, and both provided to a crusher-cutter casing 1. A small fixed-jaw-side recess 2b is formed on that side of the fixed-jaw-side crushing surface 2a of the fixed jaw main body 2 which faces the cutting side Cf1 of the fixed jaw side cutting body Cf. A small movable-jaw-side recess 3b is formed on that side of the movable-jaw-side crushing surface 3a of the movable jaw main body 3 which faces the cutting side Cm1 of the movable jaw side cutting body Cm.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crushing / cutting machine capable of extremely efficiently cutting a dismantled concrete structure or a rebar, a steel frame, a pipe or the like which is a wreckage of a steel structure. .

[0002]

2. Description of the Related Art In recent years, there have been various devices capable of cutting debris such as rebars, steel frames or pipes from dismantled reinforced concrete or steel frame structures (buildings, etc.), most of which are fixed jaws. The movable jaw and the movable jaw are opened and closed by a hydraulic cylinder mechanism or the like, and the fixed jaw and the movable jaw are respectively provided with cutting blades that are opened and closed together to cut the debris.

[0003]

However, in the above structure, if the cutting blades formed on the fixed jaw and the movable jaw respectively cut the debris having a relatively large outer circumference, the cutting blade can cut into the debris. However, before the completion of cutting the debris with the cutting blade, the surface of the debris contacts the fixed jaw and the movable jaw, and the movable jaw does not move in the direction of closing the fixed jaw, and the debris cannot be cut. Sometimes.

[0004]

Therefore, as a result of earnest studies to solve the above problems, the inventor has developed a fixed jaw main body having a fixed jaw side cut body and a movable jaw side cut body according to the present invention. The movable jaw body thus formed is provided in the outer casing of the crushing and cutting machine so that it can be freely opened and closed, and a fixed jaw side small recess is formed at the cutting side surface side portion of the fixed jaw side cutting body on the fixed jaw side crushing surface of the fixed jaw body, By using a crushing and cutting machine in which the movable jaw-side crushing surface of the movable jaw-side crushing surface of the movable jaw-side crushing surface of the movable jaw-side body is formed with small movable jaw-side dents, respectively, The column and the like can be crushed and cut, and the above problems are solved.

[0005]

Embodiments of the present invention will now be described with reference to the drawings. As shown in FIGS.
It consists of a shredding and cutting machine outer casing 1, a fixed jaw body 2 and a movable jaw body 3, a fixed jaw body 2 is formed on the shredding and cutting machine outer casing 1, and the movable jaw body 3 is on a vertical surface on the fixed jaw body 2. The opening / closing operation is performed. Its movable jaw body 3 is substantially intermediate portion is pivotally supported P ₁ into the crushing cut outside筺1.

The fixed jaw main body 2 and the movable jaw main body 3 are hollow insides.
As shown in FIG. 2, the crushing / cutting machine is moved by a cylinder 4 mounted inside the outer casing 1. The cylinder 4 has a cylinder tube body 4 a rotatably provided on the vertical surface of the crushing / cutting machine outer casing 1 in the crushing / cutting machine outer casing 1.
The tip of b is pivotally supported P ₂ on the end of the movable jaw body 3 opposite to the cutting edge.

On the fixed jaw side crushing surface 2a of the fixed jaw body 2, a fixed jaw side cutting body Cf is provided along the longitudinal direction thereof, and on the movable jaw side crushing surface 3a of the movable jaw body 3. Each of the movable jaw-side cutting bodies Cm is provided in the. When the movable jaw main body 3 is opened and closed on the fixed jaw main body 2, the fixed jaw side cutting body Cf and the movable jaw side cutting body Cm move like scissors, so that the cut object S can be cut. (See Figure 1).

The fixed jaw side cutting body Cf is specifically composed of a cutting blade 5 and a cutting blade receiving portion 6. The cutting blade 5 of the fixed jaw side cutting body Cf is formed in a substantially rectangular parallelepiped shape or a strip plate shape having an appropriate thickness, and one edge line in the longitudinal direction of the cutting blade 5 is covered. It is used for the cutting action of the cut object S.

Further, the cutting blade receiving portion 6 of the fixed jaw side cutting body Cf is provided on the fixed jaw side crushing surface 2a of the fixed jaw body 2, and specifically, on the fixed jaw side crushing surface 2a. It is integrally formed. The cutting blade receiving portion 6 is formed with a cutting blade accommodating recess 6a so that the cutting blade 5 is accommodated therein, and the cutting blade 5 is fixed to the cutting blade accommodating recess 6a with a fixing tool such as a bolt. The longitudinal direction of the fixed-side cutting blade 5 is configured to match the longitudinal direction of the fixed jaw body 2.

The movable jaw side cutting body Cm also has substantially the same structure as the fixed jaw side cutting body Cf, and as shown in FIG. 2 (b), a cutting blade 7 on the movable jaw side cutting body Cm side. The cutting blade receiving portion 8 of the movable jaw-side cutting body Cm is formed, and the cutting blade 7 is formed in a substantially rectangular parallelepiped shape or a substantially strip plate shape, and one ridgeline in the longitudinal direction thereof is the fixed-side cutting blade 5 With this, cutting is performed. A cutting blade accommodating recess 8a is formed in the cutting blade receiving portion 8 so that the cutting blade 7 can be accommodated therein, and the cutting blade 7 is fixed to the cutting blade accommodating recess 8a with a fixing tool such as a bolt. The longitudinal direction of the cutting blade 7 on the movable jaw side is configured to coincide with the longitudinal direction of the movable jaw body 3.

As shown in FIG. 2 (a), the fixed jaw side crush surface 2a of the fixed jaw main body 2 has a fixed jaw side small recess 2b.
More specifically, the fixed jaw side small recess 2b is formed on the fixed jaw side crushing surface 2a so as to be located on the cutting side surface Cf ₁ side of the fixed jaw side cutting body Cf, and the inside of the fixed jaw main body 2 is formed. It is formed to cut into.

Similarly, the movable jaw side crushing surface 3a of the movable jaw body 3
As shown in FIG. 2 (b), the movable jaw side small recessed portion 3 is provided above.
b is formed, more specifically, the movable jaw side small recessed portion 3b
Is formed on the movable jaw side crushing surface 3a so as to be located on the cutting side surface Cm ₁ side of the movable jaw side cutting body Cm, and is formed so as to bite into the inside of the movable jaw body 3.

The movable jaw side small depression 3b is formed in a substantially cubic shape inward from the movable jaw side crushing surface 3a of the movable jaw body 3. The fixed jaw side small recessed portion 2b and the movable jaw side small recessed portion 3b are provided with a cutting blade 5 and a movable jaw side cutting blade 7.
The steel material cut by the fixed jaw body 2 and the movable jaw body 3
Although it moves so as to bite inward, the fixed jaw side small recessed portion 2b and the movable jaw side small recessed portion 3b are respectively formed at the places where the biting occurs,
When the steel material escapes to the portion and the object S to be cut is cut, the object S to be cut does not get caught on the fixed jaw body 2 and the movable jaw body 3 and can be made extremely good (FIG. 3).
Through FIG. 6).

Further, the fixed jaw main body 2 and the movable jaw main body 3 are provided with a fixed jaw side small recessed portion 2b and a movable jaw side small recessed portion 3b, respectively. Since the groove is not formed in the direction, the width direction (direction orthogonal to the longitudinal direction) can be made relatively wide, so that the vertical dimension of the cross section is formed to be relatively shallow as shown in FIGS. can do.

Further, a vertical split large blade 11 is provided at the tip of the movable jaw body 3, and as shown in FIGS. The shape is a symmetric flat elliptical shape, a water drop shape, or the like. The flattened longitudinal direction of the cross section and the longitudinal direction of the movable jaw body 3 coincide with each other, and the vertically dividing large blade 11 also moves along the opening / closing surface of the movable jaw body 3. Further, a movable-side tip blade 12 is provided at the tip of the movable jaw body 3.

[0016]

According to the present invention, the fixed jaw side cutting body Cf
The crushing / cutting machine outer casing 1 is configured such that the fixed jaw main body 2 in which the movable jaw side cutting body Cm is formed and the movable jaw main body 3 in which the movable jaw side cutting body Cm is formed can be opened and closed freely
The fixed jaw side crush surface 2a of the fixed jaw body 2 is provided with a fixed jaw side small recess 2b at the cutting side Cf ₁ side of the fixed jaw side cut body Cf, and the movable jaw side crush of the movable jaw body 3 is formed. First, by using the crushing and cutting machine in which the movable jaw side small depressions 3b are formed at the cutting side surface Cm ₁ side of the movable jaw side cut body Cm on the surface 3a, firstly, the object S to be cut such as a column is cut. The cutting can be performed favorably, and secondly, the fixed jaw body 2 and the movable jaw body 3 can be downsized while having a large cutting force.

The above effect will be described in detail. When cutting a columnar object S by a fixed jaw side cutting body Cf provided on the fixed jaw body 2 and a movable jaw side cutting body Cm provided on the movable jaw body 3. In addition, the object to be cut S is subjected to a rotational moment about the cutting point by the shearing force received from the fixed jaw side cutting body Cf and the movable jaw side cutting body Cm, and the fixed jaw main body 2 and the movable jaw. Although it becomes inclined with respect to the opening / closing direction of the main body 3, both sides of the object to be cut S hit the surfaces of the fixed jaw main body 2 and the movable jaw main body 3 from the cutting point, and the cutting does not proceed any further. In the present invention, since the fixed jaw main body 2 is formed with the fixed jaw side small recessed portion 2b, and the movable jaw main body 3 is formed with the movable jaw side small recessed portion 3b, One side of the cut point escapes into the fixed jaw side small depression 2b. And the other side escapes into the movable jaw side small recessed portion 3b, and the object to be cut S hits the surfaces of the fixed jaw main body 2 and the movable jaw main body 3 and the cutting operation is not disturbed, and a good cutting operation is performed. You can

Further, in the state immediately before the completion of the cutting of the object S to be cut by the cutting operation of the object S to be cut by the fixed jaw side cutting body Cf and the movable jaw side cutting body Cm, the cutting point is mainly focused on the cutting point. Both sides will be largely shifted vertically or horizontally, but the small pieces s, s of the cut object divided into two in such a state are respectively placed in the fixed jaw side small recess portion 2b and the movable jaw side small recess portion 3b. It can be housed, the incomplete cutting of the object S to be cut can be prevented, and the perfect cutting can be performed.

Next, as described above, when the object S to be cut is cut into two small pieces s, s, the escape area is defined as the fixed jaw side small recess portion 2b and the movable jaw side small recess portion 3b. The fixed jaw side small recessed portion 2b is formed in the fixed jaw side crushing surface 2a of the fixed jaw body 2 in the vicinity of the cutting surface side of the fixed jaw side cut body Cf, and the movable jaw side small recessed portion 3b. Is formed on the movable jaw side crushing surface 3a of the movable jaw body 3 in the vicinity of the cutting surface side portion of the movable jaw side cutting body Cm.

Therefore, the fixed jaw side small recessed portion 2b is formed as a recess on the fixed jaw side crushing surface 2a of the fixed jaw main body 2, and similarly the movable jaw side small recessed portion 3b is formed on the movable jaw side crushed side. It suffices that the surface 3a is formed as a dent and has a size capable of accommodating the cut ends of both pieces s, s of the object to be cut. Since it does not form a large excised portion as a housing space for the, it is possible to secure a sufficient mechanical strength.

Further, the fixed jaw-side small recessed portion 2b and the movable jaw-side small recessed portion 3b may be formed as recesses of a size necessary for the fixed jaw main body 2 and the movable jaw main body 3 and are fixed. Whereas the cutting surface side of the fixed jaw side cutting body Cf of the jaw body 2 and the cutting surface side portion of the movable jaw side cutting body Cm of the movable jaw body 3 are all removed, the fixed jaw side crushing surface 2a and The size in the width direction of the movable jaw-side crushing surface 3a does not become extremely small. Specifically, as shown in FIG. 7, the fixed jaw main body 2 is provided with the fixed jaw-side small recessed portion 2b. The height is H ₂ , and if the section modulus is the same, the height is H ₂₀ (size of conventional type), which is extremely larger than that of the present invention.

Similarly, in the movable jaw main body 3, as shown in FIG. 7, the movable jaw main body 3 provided with the movable jaw side small recessed portion 3b has a height H ₃ , but if it has an equivalent sectional modulus, it becomes high. H ₃₀ (size of conventional type), which is extremely larger than that of the present invention.

Therefore, as shown in FIGS. 7 and 8, by forming the fixed jaw side small recessed portion 2b and the movable jaw side small recessed portion 3b in the fixed jaw body 2 and the movable jaw body 3, the opening / closing direction thereof The size in (direction orthogonal to the width direction) can be reduced.

[Brief description of drawings]

FIG. 1 is a side view of the present invention.

2A is a perspective view of a main part of the present invention, and FIG. 2B is a perspective view of a movable jaw body.

FIG. 3 is a schematic view of a fixed jaw side cutting body and a movable jaw side cutting body immediately before cutting an object to be cut.

FIG. 4 is a schematic view showing a state in which a fixed jaw-side cut body and a movable jaw-side cut body bite into an object to be cut.

FIG. 5 is a schematic view of a state in which the fixed jaw-side cut body and the movable jaw-side cut body deeply dig into the object to be cut.

FIG. 6 is a schematic view showing a state in which the object to be cut is in a substantially cut state.

[Fig. 7] A vertical sectional front view of a fixed jaw body and a movable jaw body.

FIG. 8 is a side view of the main part of the fixed jaw body.

[Explanation of symbols]

1 ... crushing cut outside筺2 ... fixed jaw body 2a ... fixed jaw side crushing surface 2b ... fixed jaw side small recess Cf ... fixed jaw side cutting member Cf ₁ ... cutting surface 3 ... movable jaw body 3a ... movable jaw side crushing surface 3b ... movable jaw side small recess Cm ... movable jaw side cutting member Cm ₁ ... cutting surface

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Isamu Nagayoshi, 314 Chikusacho, Hanamigawa-ku, Chiba City, Sakado Factory Co., Ltd. (72) Toshiyuki Kuno, 314, Chikusacho, Hanamigawa-ku, Chiba City, Sakado Factory, Ltd.

Claims (1)

[Claims] 1. A fixed jaw main body having a fixed jaw side cut body and a movable jaw main body having a movable jaw side cut body are provided in an outer casing of a crushing and cutting machine so as to be openable and closable, and the fixed jaw side of the fixed jaw main body is provided. On the crushing surface, a fixed jaw side small recess is formed on the cutting side surface side of the fixed jaw side cutting body, and on the movable jaw side crushing surface of the movable jaw body, the movable jaw side small recess is formed on the cutting side surface side of the movable jaw side cutting body. A crushing and cutting machine characterized by forming respective parts.