JPH0413329Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention can be applied to, for example, the demolition of reinforced concrete buildings, the crushing of demolished concrete blocks, the separation of reinforcing bars from reinforced concrete, and the peeling and crushing of concrete roads and asphalt roads. This relates to crushers used in

(Prior Art) This type of crusher was previously developed by the applicant (Japanese Patent Laid-Open No. 58-62073). As shown in Figures 10 to 12, this is a fixed blade body A on which a shear blade E for cutting reinforcing bars is formed as shown in Figure 10.
and a movable blade B on which a shearing blade F for cutting reinforcing bars is formed, and the movable blade B is moved along the arrow a-- with the axis P as the center by the hydraulic cylinder C shown in FIG.
It is rotated in direction b.

This crusher is installed on a shovel loader L etc. as shown in Figure 12, and the cylinders M, N, O of the shovel loader L and the hydraulic cylinder C of the crusher are operated to remove the concrete between the fixed blade body A and the movable blade body B. The objects to be crushed, such as wooden walls, floors, ceilings, and pillars, are sandwiched between them, and the movable blade B is further rotated in the direction of arrow a by the hydraulic cylinder C to crush the objects to be crushed between the double blades A and B, and crushed. It is something to do. At this time, the object to be crushed is easily crushed by the projections D protruding from the inner surface of the movable body B, and the reinforcing bars in the concrete are cut by being sandwiched between the shearing blades E and F.

(Problems with the Prior Art) In the crusher shown in Figures 10 to 12, the fixed blade body A is made of thick solid steel, etc., so it is very heavy, and therefore it is inconvenient to handle during operation and transportation. In addition, the shovel loader L and the cylinders M, N, and O of the shovel loader L are used to drive the crusher.
Another problem was that if a hydraulic cylinder C or the like of the crusher had to have a large horsepower, the cost would be high.

(Purpose of the invention) The purpose of the invention is to provide a crusher that is lightweight, convenient for transportation and handling, and has excellent strength.

(Means for Solving the Problem) As shown in FIGS. 1 and 2, the crusher of the present invention has a movable blade 2 connected to a fixed blade 1 so as to be rotatable and facing each other. As shown in FIG. 3, protrusions 5 are provided on the facing surface 3 of the movable blade body 2 so as to protrude toward the fixed blade body 1, and the protrusions 5 are provided on both side surfaces 26, 27 as shown in FIG. is from the center 28 to the outer peripheral edge 2
The movable blade body 2 is rotated toward the fixed blade body 1 by a driver 6 as shown in FIG. Accordingly, in a crusher in which the object to be crushed I is sandwiched between the two blade bodies 1 and 2, the fixed blade body 1 is attached to a frame body 11 as shown in FIGS. 5 to 7. As shown in FIG. 7, the frame body 11 is oriented horizontally and a reinforcing plate 17 is placed between an upper plate 14 and a lower plate 15, which are facing each other with an appropriate distance between them. As shown in FIG. 7, the connecting claw 12 is formed of a thick plate material with a sharp tip, and has a fitting space 41 at the back.
A plurality of claws 19 formed thereon are lined up at appropriate intervals, and the tips of the claws 19 are connected by a connecting member 20, as shown in FIG. As clearly shown in FIG. 7, the fitting space portions 41 are fixed to the frame member 11 by covering the upper and lower sides of the frame member 11.

(Function) The crusher of the present invention has a mounting plate 32 as shown in Fig. 1.
is attached to the shovel loader L, and the hydraulic cylinders M, N, and O of the shovel loader L are operated to change the direction and height of the fixed blade 1 and the movable blade 2 so that the object to be crushed can be clamped. . Next, the drive body 6
Rotate the movable blade body 2 to sandwich the object to be crushed, such as a concrete wall, floor, ceiling, pillar, roadbed, etc., between the fixed blade body 1 and the movable blade body 2. The object to be crushed is crushed and crushed between them.

When a reinforcing bar protrudes from a concrete column, a concrete wall, etc., the reinforcing bar is cut by being sandwiched between the shearing blade 25 of the fixed blade body 1 and the shearing blade 31 of the movable blade body 2.

When the fixed blade body 1 is placed on the ground J and the movable blade body 2 is closed as shown in FIG. It is crushed by being caught in between.

In the present invention, since the protrusions 4 and 5 are protruded from the movable blade 2, the object I to be crushed is pressed by them and easily crushed. In particular, since the protrusions 5 gradually become sharper from the center 28 toward the outer peripheral edge 29, the object to be crushed that is pressed by the protrusions 5 is subjected to a concentrated load, causing cracks, and from there it is crushed. become more susceptible to

(Example) FIGS. 1 to 9 show an example of the crusher of the present invention.

In FIGS. 1 to 9, 1 is a fixed blade, and 2 is a movable blade. The fixed blade body 1 is welded to a rectangular box-shaped mounting body 9. The movable blade body 2 is attached to a mounting body 9 so as to be rotatable about a shaft 10 in FIG. 2 and to face the fixed blade body 1, and is moved by an arrow in FIG. It is designed so that it can be rotated in the direction.

The fixed blade body 1 is constructed by placing a connecting claw 12 on a frame 11 shown in FIG. 7 as shown in FIG. 6, and welding a joint 13 between the two.

As shown in FIG. 7, the frame 11 is made by folding a single plate material so that the horizontally facing upper plate 14 and lower plate 15 face each other with an appropriate distance between them, and the folded portion is welded to a round bar 16. Both plates 14, The reinforcing plates 17 are arranged vertically and horizontally between the plates 15 and 15 and fixed by welding, and the upper plate 14 and the lower plate 1
A hollow portion 40 is provided between the holes 5 and 5. Both sides of the frame 11 are closed with side plates 18 attached and welded as shown in FIG.

The connecting claws 12 are formed by welding four thick plate-like claws 19 to a connecting member 20. four claws 1
9 all have the same shape, with a V-shaped side surface, an uneven upper surface 21 of the tip, and a fitting space 41 formed at the back. Further, as shown in FIG. 7, receiving protrusions 22 are provided on the two inner claws 19 to project upward. The fitting space 41 is placed over the upper plate 14 and lower plate 15 of the frame 11, and the joint 13 (FIG. 6) is welded and fixed.

Reference numeral 23 in FIGS. 5 and 6 is a tip space, which is formed between the tips of adjacent claws 19. 24
is the abutment receiving space.

7 in FIGS. 2 and 3 is the tip of the movable blade body 2. As shown in FIG. This tip 7 protrudes beyond the projections 4 and 5 as shown in FIG. 9, and when the movable blade 2 is rotated toward the fixed blade 1, the tip 7 and the fixed blade at almost the same position as the tip 8 of the both tips 7,
As shown in FIG. 1, the base K of the object I to be crushed, which protrudes upward from J, such as the road or the ground, is sandwiched between the 8 spaces so that the object I can be crushed.

By the way, the conventional movable blade pair B shown in FIG.
Since its tip G only extends to the inside of the tip H of the fixed blade A, when the movable blade B is closed as shown in Fig. 11, the object I to be shredded will not touch the road surface or the ground as shown in Fig. 12. If the blade protrudes upward from J, such as on the ground, touch the tip H of fixed blade A to the ground J and move movable blade B.
Even when closed, the tip G of the movable blade B will not touch the road or ground J.
Do not come into contact with. For this reason, the root K of the object I to be crushed could not be sandwiched between the tip portions H and G of the double-edged blades, resulting in a problem that the root portion of the object I to be crushed remained without being crushed.

Reference numerals 4 and 5 in FIGS. 2 and 3 indicate crushing protrusions formed on the facing surface 3 of the movable blade body 2. Among these, the protrusions 4 are formed in two rows on both sides of the movable blade body 2 in the width direction, and the protrusions 5 are formed between both protrusions 4.

The protrusions 4 are gradually made smaller from the tip toward the back.

The protrusion 5 has a shape as shown in FIG. This has a semicircular disk shape and has both sides 26, 2.
7 gradually becomes sharper from the center portion 28 toward the outer peripheral edge 29. The shape of the protrusion 5 may be other than this. For example, the protrusions 5 shown in FIG. 4 may be made into a disk shape by combining two protrusions 5, or the protrusions 5 shown in FIG. 4 may be halved.

Reference numeral 30 in FIG. 8 is a holding portion formed on the movable blade body 2. When the movable blade body 2 is rotated toward the fixed blade body 1 side as shown in FIG. 9, this holding part 30 can hold the object Q to be crushed, such as a long block, as shown by the imaginary line in the figure. It is to make it possible.

In FIG. 2, 25 is a shearing blade formed on the fixed blade 1, and 31 is a shearing blade formed on the movable blade 2. The shearing blade 31 is configured such that when the movable blade 2 is rotated toward the fixed blade 1, the outer surface of the shearing blade 31 comes into contact with the inner surface of the shearing blade 25 of the fixed blade 1 to shear reinforcing bars and the like. The shearing blades 25 and 31 are formed on the left side of the movable blade body 1 and the fixed blade body 2 as shown in Fig. 2, so that when the crusher is attached to the shovel loader L as shown in Fig. 1, they can be easily seen from the driver's seat of the shovel loader L. It has been done.

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

(1) Since the hollow part 40 is provided in the frame 11 of the fixed blade 1, the crusher is lightweight and convenient for transportation and handling. In addition, the shovel loader L for driving the crusher, the cylinders M, N, and O of the shovel loader L, and the hydraulic cylinder C of the crusher need only have small horsepower, thereby reducing costs.

(2) The fixed blade body 1 is fixed by covering the frame 11 with the reinforcing plate 17 arranged and fixed between the upper plate 14 and the lower plate 15, and covering the connecting claw 12 with a plurality of claws 19 connected to each other. Strong strength.

(3) The fixed blade body 1 has a hollow frame body 11 and several claws 19
and a connecting claw 12 that connects the
The structure is concise.

(4) Since the fitting space portions 41 formed in the connecting claws 12 are placed over the top and bottom of the frame material 11 and fixed to the same frame material 11, the connecting claws 12 and the frame material 11 can be easily assembled.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of the use of the crusher of the present invention, Fig. 2 is an explanatory diagram of the crusher, Fig. 3 is an explanatory diagram of the movable blade of the crusher, and Fig. 4 is an explanatory diagram of the movable blade of the same. Fig. 5 is an explanatory view of the fixed blade of the crusher of the present invention, Fig. 6 is a partially cutaway explanatory view of the tip of the fixed blade, and Fig. 7 is an explanatory view of the fixed blade of the crusher of the present invention. An exploded explanatory diagram of the blade body. Figure 8 is an explanatory diagram of the movable blade body of the crusher of the present invention rotated halfway toward the fixed blade side. Figure 9 is an explanatory diagram of the movable blade body of the crusher of the present invention fixed. Figure 10 is an explanatory diagram of a conventional crusher, and Figure 11 is an explanatory diagram of a conventional crusher with the movable blade rotated to the fixed blade. FIG. 12 is an explanatory diagram of the use of a conventional crusher. 1 is a fixed blade body, 2 is a movable blade body, 3 is an opposing surface, 5
1 is a protrusion, 6 is a drive body, 11 is a frame body, 12 is a connecting claw, 14 is an upper plate, 15 is a lower plate, 17 is a reinforcing plate, 1
9 is a pawl, 20 is a connecting member, 26 and 27 are the center of the protrusion, 29 is the outer periphery of the protrusion, 40 is a hollow part, 41 is a blade fitting space, I is an object to be crushed, and J is a road surface or Ground,
K is the root.

Claims (1)

[Scope of utility model registration request] A movable blade 2 is connected to the fixed blade 1 so as to be rotatable and facing each other, and a protrusion 5 is provided on the opposing surface 3 of the movable blade 2 so as to protrude toward the fixed blade 1,
The protrusion 5 has both side surfaces 26 and 27 in the shape of a disk or a part thereof, with both side surfaces 26 and 27 gradually becoming sharper from the center 28 toward the outer peripheral edge 29, and the movable blade 2
In this crusher, the material to be shredded I is sandwiched between the blades 1 and 2 and shredded by being rotated toward the fixed blade 1 side by the driving body 6.
is composed of a frame 11 and a connecting claw 12 attached thereto, and the frame 11 is placed horizontally with a reinforcing plate 1 between an upper plate 14 and a lower plate 15 facing each other with an appropriate distance between them.
7 in the vertical direction and arranged and fixed vertically and horizontally to form the hollow part 40.
The connecting claw 12 is formed of a thick plate material with a sharp tip, and has a fitting space 4 at the back.
A plurality of claws 19 having a number 1 formed thereon are lined up at appropriate intervals, and the distal ends of the claws 19 are connected by a connecting member 20. A crusher characterized in that it is fixed to the same frame material 11 by covering the top and bottom.