JPS6152310B2 - - Google Patents

Description

Detailed Description of the Invention The present invention is used as the main part of a demolition device for structures (buildings, etc.) made of reinforced concrete, and is most suitable for crushing reinforced concrete walls, floors, ceilings, columns, etc. This article relates to an efficient crushing device.

Conventionally, a movable blade and a fixed blade are opened and closed using a hydraulic cylinder, and the
A crushing device has been developed that grips pillars and crushes them with double-edged blades. In order to make the crushing more effective, the applicant has developed a movable blade a as shown in FIGS. 8 and 9.
We have already developed a device with a sharp protrusion on the inside of the tip. It became possible to crush the object by grasping it with the sharp protrusion, but in the process of pushing and breaking, as the movable blade a oscillated, the position of the sharp protrusion acted to squeeze forward, as shown in Fig. 9. As shown in Fig. 1, the object is pushed out by Δs (depending on the thickness of the object to be crushed, but generally several centimeters to several tens of centimeters) on the fixed blade b, and this escape action occurs, resulting in a large crushing resistance force and a high resistance to crushing. There was a drawback that the ability was reduced. Furthermore, as shown in FIG. 8, there was also a drawback that if the sharp protrusions hit the reinforcing bars during the process of pushing and breaking, the breaking could not proceed. As a result, a large pressing force is required, leading to problems such as an increase in the size of the hydraulic cylinder.

Therefore, in the present invention, the base of a movable blade that swings in a vertical plane is pivotally supported in an outer casing, a fixed blade corresponding to the movable blade is fixed to the outer casing, and an abacus bead-shaped piece is attached to the tip of the movable blade. By pivotally supporting the push-splitting roll and providing its movable blade so as to be swingable by a hydraulic cylinder, or by forming a notch at the tip of the fixed blade in the above configuration into which the periphery of the pushing-splitting roll can be inserted, If this is used as the main part of the demolition equipment for reinforced concrete structures (buildings, etc.), it will be the most efficient way to crush reinforced concrete walls, floors, ceilings, columns, etc., and will eliminate the above-mentioned drawbacks and problems. This is what I did.

The structure will be explained with reference to the drawings.

Reference numeral 1 denotes an outer casing, which has a substantially triangular or inverted L shape when viewed from the side, and is hollow inside. The front side of the outer casing 1 (left side in Figure 1, etc.)
An opening 2 is provided in the opening 2. Reference numeral 3 denotes a movable blade, the base of which is inserted into the outer casing 1 through the opening 2 and is pivotally supported. In the embodiment, the collar 3a is inserted into the shaft rod 4 fixed to two openings of the outer casing 1.
The movable blade 3 is configured to swing in a vertical plane. 5 is a fixed blade, movable blade 3
The base side of the fixed blade 5 is inserted into the outer casing 1 through the opening 2, and the base is fixed to a reinforcing seat or the like fixed to the outer casing 1.
The movable blade 3 and the fixed blade 5 can be opened and closed, and the base side thereof is configured to perform a shearing action. Further, the tip of the fixed blade 5 is formed into a sharp point toward the tip side. One end (lower end) of the swinging arm 6 is attached to the collar 3a at the base of the movable blade 3.
is fixed. That is, one end of the swing arm 6 is fixed to the base of the movable blade 3. Reference numeral 7 denotes a hydraulic cylinder, which is built into the outer casing 1, whose rear side is pivotally supported by the outer casing 1, and whose front side is provided with a cylinder rod 8 that moves forward and backward as appropriate by hydraulic pressure. The movable blade 3 is pivotally supported by the other end (upper end) of the swing arm 6, and as the cylinder rod 8 slides back and forth, the movable blade 3 swings in a vertical plane via the swing arm 6. When the movable blade 3 is closed,
(See the dotted line in Figure 4), the movable blade 3 and fixed blade 5 perform a shearing action. Reference numeral 9 denotes an abacus bead-shaped push roll, which is pivotally supported at the tip of the movable blade 3. In the embodiment, the push-splitting roll 9 is pivotally supported by a pin at the bifurcated portion at the tip of the chevron-shaped arc portion 3b so that the rotation plane of the split roll 9 lies in a vertical plane along which the movable blade 3 swings. A notch 10 is provided at the tip of the fixed blade 5 in a U-shape when viewed from above (see FIG. 1). Alternatively, the notch 10 may not be provided (see FIG. 2).

In the figure, 11 is the main body of the shovel loader, 12 is the arm, 13 is the sub-arm, and 14 is the mounting plate for the outer casing 1.
is fixed to. 15, 16, and 17 are first, second, and third hydraulic cylinders.

Next, the effects will be explained.

First, in the invention of claim 1, the base of the movable blade 3 that swings in a vertical plane is attached to the outer casing 1.
A fixed blade 5 is pivotally supported by the movable blade 3 and corresponds to the movable blade 3.
is fixed to the outer casing 1, an abacus bead-shaped push-splitting roll 9 is pivotally supported at the tip of the movable blade 3, and the movable blade 3 is provided so as to be swingable by a hydraulic cylinder 7. As a result, it is possible to crush reinforced concrete walls, floors, ceilings, columns, etc. in the most efficient manner.

To explain the operation and effect in detail, as shown in FIG. 10, a shovel and the crushing device of the present invention are replaced at the end of the sub arm 13 of a shovel loader, and the cylinder rod 8 is moved forward and backward as appropriate by the hydraulic drive of the hydraulic cylinder 7. When the movable blade 3 is oscillated via the oscillating arm 6 to carry out crushing work, at the initial stage of crushing, the crushing starts at point P on the periphery of the pushing/splitting roll 9 (see the solid line in Figure 5), and then the movable blade 3 is When the blade 3 is swung counterclockwise in FIG. 5, it acts to squeeze out the material to be crushed forward (to the left in FIG. 5), but since the push-split roll 9 is rotatable, the push-split roll 9 is rotated freely. 9 rotates, the object to be crushed on the fixed blade 5 is not pushed out, and the object to be crushed can be held fixed on the fixed blade 5 by the frictional force on the upper surface of the fixed blade 5. As a result, there is no escape action of the material to be crushed, and substantially all of the hydraulic pressure from the hydraulic cylinder 7 can be converted into a force for crushing during the crushing process, making it possible to perform crushing work with extremely high efficiency.

Moreover, the press-splitting roll 9 of the present invention has an abacus bead shape,
Moreover, since it is rotatable, its destructive force acts as a concentrated load on the sharp outer periphery of the abacus bead shape, and as shown in Figure 6, it easily crushes the object in the vertical direction (horizontal direction in Figure 6). can cause cracks,
The ability to easily crush and prevent the above-mentioned escaping effect of the crushed material works synergistically to allow extremely efficient crushing work. Furthermore, conventionally, the eighth
As shown in the figure, there was a drawback that if the sharp protrusions hit the reinforcing steel during the breaking process, crushing could not proceed, but since the breaking roll 9 was shaped like an abacus bead and was rotatable, the pushing rolling roll 9 could be moved. Blade 3
By slightly shaking the rod, reinforcing bars, etc. can be easily cut, and the crushing process can be improved.

Since the crushing ability is dramatically increased as described above, the hydraulic cylinder 7 can be downsized, and the cost of the crushing device can be reduced.

Further, the abacus bead-shaped push-splitting roll 9 is different from the conventional sharp protrusions, and its entire circumference acts as a blade, making it durable for long-term use and economical.
Furthermore, in the past, when the sharp protrusion was damaged, it was necessary to replace the entire movable blade a, but in the present invention, only the push-splitting roll 9 needs to be replaced, and there is a good effect in terms of maintenance and management. Further, an appropriate shape (point angle, etc.) and size of the push-splitting roll 9 can be selected depending on the material of the object to be crushed.

Next, in the invention of claim 2, in the structure of the invention of claim 1, a notch 10 is formed at the tip of the fixed blade 5 into which the periphery of the press-splitting roll 9 can be inserted. Since there is a notch 10 into which the peripheral edge of the roll 9 bites, it is possible to further increase the crushing force for crushing the object to be crushed. That is, the object to be crushed is supported by both sides of the notch 10, and the force of the sharp part on the outer periphery of the split roll 9 acts as a concentrated load, and the force of the sharp part on the outer periphery of the split roll 9 is small, unlike crushing. The shearing action of the crushing force (hydraulic driving force) enables extremely good crushing, and furthermore, the object to be crushed can be finely crushed.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the present invention, Fig. 2 is a partial perspective view of another embodiment of the fixed blade, Fig. 3 is a cross-sectional view of the push-splitting roll portion, and Fig. 4 is a partial longitudinal view of the main part of the present invention. 5 to 7 are schematic state diagrams showing the working state according to the present invention, FIGS. 8 and 9 are schematic state diagrams showing the conventional working state, and FIG. 10 is a schematic state diagram showing the working state according to the present invention. It is a side view attached to a shovel loader. 1...Outer casing, 3...Movable blade, 5...Fixed blade, 7
...Hydraulic cylinder, 9...Press split roll, 1
0...notch part.

Claims (1)

[Scope of Claims] 1. The base of a movable blade that swings in a vertical plane is pivotally supported in an outer casing, and a fixed blade corresponding to the movable blade is fixed to the outer casing, and an abacus bead is attached to the tip of the movable blade. A crushing device characterized by having a shaped push-splitting roll that is pivotally supported, and a movable blade of the roll that can be swung by a hydraulic cylinder. 2. The base of a movable blade that swings in a vertical plane is pivotally supported on the outer casing, and a fixed blade corresponding to the movable blade is fixed to the outer casing, and an abacus bead-shaped push-splitting roll is attached to the tip of the movable blade. forming a notch at the tip of the fixed blade into which the peripheral edge of the splitting roll can be inserted;
A crushing device characterized by having a movable blade swingable by a hydraulic cylinder.