JPH0315612Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The invention relates to a crushing device that shreds, for example, concrete blocks that have been demolished from buildings, etc., or roadbeds that have peeled off from concrete roads or asphalt roads. .

(Prior Art) As this type of crushing device, there is one shown in FIG. 7, which was previously developed by the applicant of the present invention.

This is composed of a fixed blade body A and a movable blade body B. A crushing protrusion C shaped like an abacus bead cut in half is attached to the tip of the movable blade body B, and the movable blade body B is operated by a hydraulic cylinder D. Arrow a-b centered on axis E
It is designed so that it can be rotated in any direction.

This crushing device is attached to a shovel loader F as shown in Fig. 9, and the hydraulic cylinder D is operated by the shovel loader to rotate the movable blade B toward the fixed blade A as shown in Fig. 8. The object G to be crushed, such as a concrete wall or roadbed, is sandwiched between the movable blade B and the object G to be crushed and crushed.

In addition, the reinforcing bars in reinforced concrete blocks and reinforced concrete walls can be cut by sandwiching them between the shearing blade I attached to the fixed blade A and the shearing blade H attached to the movable blade B in Fig. 7. There is.

(Problems with the prior art) In the conventional crushing device, the crushing protrusions C are fixed to the movable blade B, so when the crushing protrusions C wear out,
It is difficult to replace the crushing protrusion C. Therefore, it was necessary to replace even the movable blade B that was not worn out, which was very uneconomical.

To solve this problem, the crushing protrusion C may be made detachable. Therefore, as shown in FIG. 10, the applicant first attached a connector J to the tip of the movable blade B, attached a connector K to the crushing protrusion C, and connected these connectors J and K to the crushing protrusion. A method for attaching the child C to the movable blade body B was developed.

However, in this connection method, the width of the connectors J, K is wide and they protrude to the side of the crushing protrusion C. It got in the way and I couldn't dig it in any deeper. Therefore, there was a problem that the object to be crushed I could not be crushed sufficiently.

(Purpose of the invention) The purpose of the invention is to make the crushing protrusion removable from the movable blade body, to allow the crushing process to penetrate not only the crushing protrusion but also its upper part deeply into the object to be crushed, and to crush concrete. It is an object of the present invention to provide a crushing device capable of peeling off the roadbed of roads, asphalt roads, etc.

(Means for solving the problem) The crushing device of the present invention is shown in FIGS. 1 to 6,
When the fixed blade 1 and the movable blade 2 face each other and the movable blade 2 is rotated toward the fixed blade 1 by the driver 3, the object to be crushed is separated between the fixed blade 1 and the movable blade 2. In the crushing device, the movable blade body 2 has a disk shape or a part thereof formed sharply from the center 12 toward the outer peripheral edge 13 at the tip 4 of the movable blade 2. The shaped crushing protrusion 5 is made removable via the connecting body 15, and the side surface 30 of the connecting body 15 above the crushing protrusion 5 is tapered upward and gradually outward. It is capable of biting into objects to be crushed.

(Operation of the invention) In order to use the crushing device of the present invention, it is attached to, for example, a shovel loader, and the hydraulic cylinder of the shovel loader is operated in the same way as the conventional crushing device, and the fixed blade body 1 and the movable blade body 2 are moved between the fixed blade body 1 and the movable blade body 2. In this state, the movable blade body 2 is rotated toward the fixed blade body 1 side using the driver 3, and the material to be crushed is sandwiched between the fixed blade body 1 and the movable blade body 2, such as concrete walls, roadbeds, etc. Crush the crushed material by pinching it and crushing it.

In this case, even if all of the crushing protrusions 5 have bitten into the object to be crushed, if the movable blade body 2 is still rotated toward the fixed blade body 1 side, the connected body above the crushing protrusions 5 will be formed as shown in FIG. 15 also bites into the object G to be crushed. Therefore, even asphalt roadbed, which becomes soft and difficult to break due to high temperatures during the summer, can be reliably crushed.

(Embodiment) FIG. 1 shows an embodiment of the crushing device of the present invention.
In the figure, 1 is a fixed blade, and 2 is a movable blade. The tip 7 of the fixed blade 1 is detachably attached to the fixed blade main body 8.

The movable blade body 2 is attached to a housing 9 so as to be rotatable by a rotating shaft 10, and is rotated by a driving body 3 such as a hydraulic cylinder from the position shown by the solid line in FIG. 1 as shown by the imaginary line. be.

As shown in Fig. 3, the crushing protrusion 5 has the shape of an abacus bead that is roughly halved, with the side surface 11 being the center part 1 of the diameter.
It is formed so that it becomes gradually thinner from 2 toward the outer peripheral edge 13. The shape of the crushing protrusion 5 may be other than this, and may be, for example, the same disc shape as the abacus bead, or the shape of the abacus bead divided into four parts.

In the one shown in FIG. 2, a crushing protrusion 5 is welded to a connecting body 15, and a circular connector 16 formed above the connecting body 15 is formed at the tip of the movable blade 2. Insert between two connecting pieces 17a, 17b, through holes 18a, 18b of connecting pieces, connecter 1
Insert the rod-shaped connector 2 into the through hole 19 of 6 as shown in Fig. 3C.
0, and then insert the movable blade 2 as shown in Figure 3 A.
A wedge 23 is driven between the tapered surface 21 of the connecting body 15 and the receiving surface 22 of the connecting body 15, and the wedge 23 is attached to the side of the fixed blade 1 with a fastener 40 such as a bolt to attach the movable blade 2 to the side of the fixed blade 1 as shown in FIG. The crushing protrusion 5 is tightly fixed to the movable blade body 2 via the connecting body 15.

In the one shown in FIG. 4, a crushing protrusion 5 is welded to a connecting body 15, and an insertion protrusion 25 formed above the connecting body 15 is vertically formed on the tip 4 of the movable blade body 2. 5, insert it into the insertion hole 26 formed in the insertion hole 26, and then insert a connecting wedge from the through hole 27 formed laterally in the tip 4 into the horizontal hole 28 formed in the insertion protrusion 25, as shown in FIG. 2
9 is inserted, and the crushing protrusion 5 is tightly connected to the movable blade body 2 via the connecting body 15.

The wedge 29 is tapered to prevent it from accidentally coming out once it is driven into the through hole 28.

In the case of FIGS. 2 and 4, the side surface 30 of the connecting body 15
When the movable blade body 2 is rotated toward the fixed blade body 1 by forming it into a taper that gradually expands outward toward the top, not only the crushing protrusion 5 but also the connecting body 15 will bite into the object to be crushed. It is made possible to do so.

Reference numeral 31 in FIG. 1 is a peeling protrusion, which is used to peel off roadbeds such as asphalt roads and concrete roads. This peeling protrusion 31 is provided to protrude outside the tip of the movable blade body 2.

Each of the fixed blade body 1 and the movable blade body 2 may be provided with a shear blade for cutting reinforcing bars in reinforced concrete, similar to the shear blades H and I in FIG. 7.

(Effect of idea) The crushing device of the present invention has the following effects.

(1) The crushing protrusion 5 is connected to the movable blade body 2 via the connecting body 15.
Since it is detachable, if the crushing protrusion 5 is worn out due to use, only the crushing protrusion 5 can be replaced without replacing the movable blade 2, which is very economical.

(2) Since the shape of the crushing protrusion 5 is formed to be sharp (like an abacus bead shape) from the center 12 of the diameter toward the outer circumference 13, when the crushing protrusion 5 crushes the object, the object will be crushed. A concentrated load is applied to the object, making it easier to crush the object.

(3) Side surface 30 of the connecting body 15 above the crushing protrusion 5
is tapered to gradually expand outward toward the top so that its side surface 30 can also bite into the object to be crushed, so that even objects to be crushed that are difficult to break can be easily and reliably crushed.

(4) If a peeling protrusion 31 is provided protrudingly on the outside of the tip of the movable blade 2 as shown in Fig. 1, the roadbed can be peeled off, and one crushing device can perform both peeling and crushing of the roadbed. It is very convenient because it can be done, and it is also economical because there is no need to separately prepare a peeling machine and a crushing device.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing an example of the crushing device of the present invention, Fig. 2 is an explanatory diagram showing an example of the crushing protrusion attachment portion of the crushing device, and Fig. 3 is an explanatory diagram showing an example of the crushing protrusion attachment portion of the crushing device. A is a side explanatory view before driving the wedge, B is an explanatory side view after driving the wedge, C is a sectional view taken from A to A in the same figure, and Fig. 4 is a side view of the part where the crushing protrusion is attached. An exploded view showing another example, FIG. 5 is a longitudinal sectional front view of the crushing protrusion attachment part of the crushing device of the present invention, FIG. 6 is an explanatory view of the crushing state by the crushing device of the present invention, and FIGS. 7 to 9 1 is an explanatory diagram of a conventional crushing device, and FIG. 10 is a partial explanatory diagram of a crushing device previously developed by the applicant of the present invention. 1 is a fixed blade body, 2 is a movable blade body, 3 is a driving body, 4
1 is the tip of the movable blade, 5 is the crushing protrusion, 15 is the connecting body, 12 is the center, 13 is the outer peripheral edge, and 30 is the side surface.

Claims (1)

[Scope of utility model registration request] The fixed blade body and the movable blade body face each other, and when the movable blade body is rotated toward the fixed blade body by the driving body, the object to be crushed is crushed and crushed between the fixed blade body and the movable blade body. In this type of crushing device, a crushing protrusion in the shape of a disk or a portion thereof, which is sharply formed from the center of the diameter toward the outer periphery, is attached to and detached from the tip of the movable blade via a connecting body. A crushing device for a roadbed or the like, characterized in that the side surface of the connecting body above the crushing protrusion is tapered upward and gradually outwardly, so that the connecting body can also bite into the object to be crushed.