JPH0413330Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The 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 a crushing device used for such purposes.

(Prior Art) This type of crushing device was previously developed by the applicant of the present invention (Japanese Patent Laid-Open No. 58-62073). This is composed of a fixed blade body A and a movable blade body B, as shown in FIGS. It is rotated in the direction. In addition, as shown in Fig. 12, the movable blade body B has crushing protrusions Da, Db shaped like halves of an abacus bead, and an outer protrusion R, and the fixed blade body A and the movable blade body B have Shear blades E and F for cutting reinforcing bars are formed.

This crushing device is attached to the shovel loader L as shown in Fig. 14, and the cylinder M of the shovel loader L,
By operating the N, O and hydraulic cylinder C of the crushing device, objects to be crushed, such as concrete walls, floors, ceilings, columns, etc., are sandwiched between the fixed blade A and the movable blade B, and then the movable blade B is is rotated in the direction of arrow a by a hydraulic cylinder C to crush and crush the object between the double-edged blades A and B. At this time, the object to be crushed is crushed by the crushing protrusions Da, Db and the outer protrusions R. Further, the reinforcing bars in the concrete are cut between the shearing blades E and F.

(Problems with the Prior Art) The crushing apparatus shown in FIGS. 12 to 14 has the following problems.

(1) The fixed blade body A is made of thick solid steel and is therefore very heavy, making it inconvenient to handle during operation and transportation. There was a problem in that if cylinders M, N, O of the shovel loader L, hydraulic cylinder C of the crusher, etc. had to have large horsepower, the cost would be high.

(2) Since the diameter of the crushing protrusion Da at the back is smaller than the crushing protrusion Db at the front, it is difficult for the crushing protrusion Da at the back to hit the object to be crushed even when the movable blade B is closed as shown in FIG. For this reason, the abacus bead-shaped fractured protrusions
Even with Da, the crushing effect was small.

(3) Since there is no mechanism for peeling off the road base, although it was possible to crush concrete walls and pillars, it was not possible to peel off the road base.

(4) When the movable blade B is closed as shown in Fig. 13, the tip G of the movable blade B is located inside the tip H of the fixed blade A, so it is not covered as shown in Fig. 14. If the crushed material I protrudes upward from J, such as a road surface or the ground, move the tip H of the fixed blade A to the ground J.
Even if the movable blade body B is closed at the same time, the tip part G of the movable blade body B does not come into contact with the road surface or the ground J. 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.

The purpose of this invention is as follows.

To provide a crushing device that is lightweight, convenient for transportation and handling, and has excellent strength.

To provide a crushing device capable of crushing more efficiently and reliably than conventional end devices.

To provide a crushing device capable of peeling off roadbeds.

To provide a crushing device capable of crushing an object I to be crushed protruding from J such as a road surface or the ground from its root K as shown in FIG.

(Means for solving the problem) The crushing device of the present invention is as shown in Figs. 1 and 2.
A movable blade body 2 is connected to a fixed blade body 1 so as to be rotatable and facing each other, and as shown in FIG. The crushing protrusions 5a and 5b are arranged side by side so as to protrude toward the fixed blade body 1 side, and both side surfaces 26 and 27 of the crushing protrusions 5a and 5b are formed to become gradually sharper from the center 28 toward the outer peripheral edge 29, as shown in FIG. It has the shape of an abacus bead or a part thereof, and by rotating the movable blade body 2 toward the fixed blade body 1 side by the driver 6, the object to be crushed I is moved between the double blade bodies 1 and 2. In the crushing device configured to crush by pinching, the fixed blade body 1 has a sixth
As clearly shown in FIG. 7, the frame body 11 is composed of a frame body 11 and a connecting claw 12 attached to the frame body 11, and the frame body 11 is placed horizontally and an upper plate 14 is placed facing the frame body 11 at an appropriate distance.
A hollow portion 40 is provided between the lower plate 15 by fixing the reinforcing plate 17 vertically and horizontally. A plurality of claws 19 each having a fitting space 41 are spaced apart from each other and arranged, and the tips of the claws 19 are connected by a connecting member 20.
2 is fixed to the frame material 11 with its fitted space 41 covering the top and bottom of the frame material 11, and the crushing protrusions 5a and 5b are used for crushing at the back as shown in FIGS. 8 to 10. The diameter of the protrusion 5a is formed to be the same as or larger than the diameter of the crushing protrusion 5b in front, and the movable blade body 2 has its tip 7 connected to the tip of the fixed blade body 1 as shown in FIGS. 9 and 10. The tip 3 of the movable blade body 2 is provided with a peeling protrusion 50 that projects forward from the tip 3 as shown in FIG. 10.

(Function) The crushing device of the present invention has a mounting plate 3 as shown in Fig. 1.
2 is attached to the shovel loader L, and the hydraulic cylinders M, N, O of the shovel loader L are operated to change the direction, height, etc. of the fixed blade body 1 and the movable blade body 2 so that the object to be crushed can be clamped. . Next, the movable blade body 2 is rotated by the driving body 6, and the object I to be crushed, such as a concrete wall, floor, ceiling, pillar, roadbed, etc., is sandwiched between the fixed blade body 1 and the movable blade body 2, and the double blade body 1 , 2 crush and crush the object to be crushed.

In this case, the diameter of the crushing protrusion 5a at the back is the same as or larger than the diameter of the crushing protrusion 5b at the front, so when the movable blade body 2 is closed, the crushing protrusion 5a at the back is the fixed blade first. The object to be crushed I sandwiched between the body 1 and the movable blade 2 is crushed. Moreover, fracture protrusion 5
a from the center 28 to the outer peripheral edge 2 as shown in FIG.
Since it is formed in the shape of an abacus bead that gradually becomes sharper toward point 9, a concentrated load is applied to the edge I to be crushed, causing cracks to form and making it more likely to be crushed.

When the movable blade body 2 is further rotated and closed, the object to be crushed I is crushed and crushed by the front crushing protrusion 5b and the outer protrusion 4. In this case as well, since the crushing protrusions 5b are formed in the shape of an abacus bead that gradually becomes sharper from the center 28 toward the outer peripheral edge 29, a concentrated load is applied to the object I that has cracked first, making it easy to Shattered.

As shown in FIG. 11, when the peeling protrusion 50 is inserted under the roadbed 52 of the road 51 and pulled up, the roadbed 52 is dug up and peeled off.

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.

Object I to be crushed, such as a concrete column or concrete wall, sandwiched between the fixed blade body 1 and the movable blade body 2
If a reinforcing bar protrudes from the
Cutting is performed by sandwiching it between the shearing blade 25 of the fixed blade 1 and the shearing blade 31 of the movable blade 2 shown in the figure.

If the movable blade body 2 is rotated toward the fixed blade body 1 side as shown in FIG.
It is also possible to sandwich an object Q to be crushed, such as a long block, between the crusher 0 and the crusher 0, as shown by the imaginary line in the same figure.

(Example) FIGS. 1 to 9 show an example of the crushing apparatus of the present invention. In these figures, 1 is a fixed blade, and 2 is a movable blade. The fixed blade body 1 is fixed to the housing 9 by welding. The movable blade body 2 is rotatably attached to a housing 9 by a connecting shaft 10 as shown in FIG. 2, and is rotated in the direction of the arrow in FIG. 1 by a driving body 6 such as a hydraulic cylinder in FIG. It is set as.

The fixed blade body 1 has a frame body 11 as shown in FIGS. 6 and 7.
and a connecting claw 12 attached thereto.

The frame 11 is oriented horizontally, and the tips of the upper plate 14 and the lower plate 15 are welded to a round bar 16, and the upper plate 14 and the lower plate 15 are placed facing each other while being separated from each other. A hollow portion 40 is provided by arranging and fixing them by welding.

There are side plates 18 on both sides of the frame 11 as shown in FIG.
are fixed by welding to cover the hollow part 40.

The connecting claw 12 is formed of a thick plate material into a substantially V-shape with a sharp tip, and has a fitting space 4 at the back.
Four claws 19 having numbers 1 formed thereon are arranged at appropriate intervals, and the tips of the claws 19 are welded with a connecting material 20. These four claws 19 all have the same shape, with a V-shaped side surface and an uneven upper surface 21 of the tip. Moreover, receiving protrusions 22 are provided protruding from the two inner claws 19. The fitting spaces 41 of the connecting claws 12 are placed over the upper and lower sides of the frame member 11, and the joints 13 (FIG. 6) are welded together.

Reference numeral 23 in FIGS. 5 and 6 is a tip space formed at the tip of the movable blade body 2, and is formed between the tips of adjacent claws 19.

24 is a protrusion receiving space formed deeper than the tip space 23 of the movable blade 2, and when the movable blade 2 is rotated toward the fixed blade 1 as shown in FIG. It is formed wide enough to fit the crushing protrusion 5b attached to the movable blade body 2.

5a and 5b in FIGS. 2 and 3 are crushing protrusions formed on the facing surface 3 of the movable blade body 2. These crushing protrusions 5a and 5b are formed in a line in the front and rear direction at the center of the width direction of the movable blade body 2, and the diameter of the crushing protrusion 5a at the back is the same as or larger than the diameter of the crushing protrusion 5b at the front. It has been done. Thereby, when the movable blade body 2 is closed as shown in FIG. 9, the crushing protrusion 5a at the back always crushes the object I before the crushing protrusion 5b at the front.

As shown in Fig. 4, the crushing protrusions 5a and 5b are shaped like an abacus ball cut in half, and both sides 2
6 and 27 are formed to become gradually sharper from the center portion 28 toward the outer peripheral edge 29. Fracture protrusions 5a, 5b
The shape may be other than this, for example, it may be in the same disc shape as the abacus bead, or it may be in the shape of an abacus bead divided into several pieces. Moreover, although the illustrated one is provided with two crushing protrusions 5a and 5b, the number may be three or more.

Reference numerals 4 in FIGS. 2 and 3 indicate outer protrusions formed on the facing surfaces of the movable blade body 2, which are formed in two rows on both sides of the movable blade body 2 in the width direction, and have tapered tips. , and gradually become smaller from the tip toward the back. Contrary to what is shown in FIGS. 2 and 3, the outer protrusions 4 may be made to gradually become larger from the tip toward the back.

Reference numeral 50 in FIG. 10 denotes a peeling protrusion formed at the tip of the upper surface of the movable blade 2, and the tip is formed to be sharp and is attached so as to protrude forward from the tip of the movable blade 2.

7 in FIGS. 2 and 3 is the tip of the movable blade body 2. As shown in FIG. The tip 7 is formed to have a length that is at the same position as the tip 8 of the fixed blade 1 when the movable blade 2 is rotated toward the fixed blade 1 as shown in FIG. This makes it possible to pinch the base K of the object I to be crushed that protrudes upward from the road, ground J, etc., as shown in FIG.

Reference numeral 30 in FIG. 8 is a holding portion formed by recessing the movable blade body 2, and when the fixed blade body 1 and the movable blade body 2 are engaged with each other as shown by the imaginary line in FIG. The object Q to be crushed, such as a long block, can enter and be sandwiched between the double-edged blades 1 and 2.

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. When the movable blade 2 is rotated toward the fixed blade 1 as shown in FIG. 9, the shearing blade 31 comes into contact with the inner surface of the shearing blade 25 of the fixed blade 1, shearing reinforcing steel, etc. I have made it possible. Double shearing blade 2
5 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 to make it easier to see from the driver's seat of the shovel loader L when the crushing device is attached to the shovel loader L as shown in Fig. 1. be.

(Effect of idea) The crushing device 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. The structure is simple and strong.

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

(4) When the movable blade 2 is closed, the object I to be crushed is first crushed by the large-diameter back crushing protrusion 5a, and when the movable blade 2 is further closed, the object I is crushed by the front crushing protrusion 5a. Therefore, the object I to be crushed is crushed in two stages, and even the object I to be crushed, which is difficult to crush, is reliably crushed.

(5) As shown in Fig. 4, the crushing protrusions 5a are formed to become gradually sharper (in an abacus bead shape) from the center 28 toward the outer peripheral edge 29, so that a concentrated load is applied to the object I to be crushed, causing cracks. It is easy to get into it, and it is even more likely to be crushed.

(6) Since the peeling protrusion 50 is formed on the tip 7 of the movable blade 2 so as to protrude beyond the tip 7, it is possible to easily peel off the roadbed 52 in addition to crushing objects to be crushed. I can do it.

(7) Since the tip 7 of the movable blade 2 protrudes to the same position as the tip 8 of the fixed blade 1, the object I to be crushed protruding from the road surface or the ground can be crushed by pinching it from the base K. , leaving almost no crushed material I on the road or ground.

[Brief explanation of drawings]

Figure 1 is an explanatory diagram of the use of the crushing device of the present invention, Figure 2
Figure 3 is an explanatory diagram of the same crushing device, Figure 3 is an explanatory diagram of the movable blade of the same crushing device, Figure 4 is an explanatory diagram showing an example of a crushing protrusion attached to the movable blade, and Figure 5 is an explanatory diagram of the crushing protrusion of the present invention. An explanatory view of the fixed blade of the crushing device, Fig. 6 is an explanatory view with a partial cutout of the tip of the fixed blade, Fig. 7 is an explanatory view of the fixed blade before assembly, and Fig. 8 is a movable blade. Explanatory diagram of the state in which the blade has been rotated halfway toward the fixed blade side, No. 9
The figure is an explanatory view of the movable blade rotated until it engages with the fixed blade, Figure 10 is a side view showing another example of the crushing device of the present invention, and Figure 11 is an explanation of how to use the crushing device of Figure 10. 12 is an explanatory diagram of a conventional crushing device, FIG. 13 is an explanatory diagram of the conventional crushing device with the movable blade rotated to the fixed blade, and FIG. 14 is an explanation of how to use the conventional crushing device. It is a diagram. 1 is a fixed blade body, 2 is a movable blade body, 3 is an opposing surface, 5
a and 5b are crushed protrusions, 6 is a drive body, 26 and 27 are both side surfaces of the crushed protrusions, 28 is a central portion, and 29 is an outer peripheral edge.

Claims (1)

[Scope of utility model registration request] A movable blade body 2 faces the fixed blade body 1 and is rotatably connected to the fixed blade body 1, and two or more crushing protrusions 5a and 5b are arranged in the front-rear direction and protrude so as to protrude toward the fixed blade body 1 side. Both sides 26 and 27 of the protrusions 5a and 5b have the shape of an abacus bead or a part thereof, with both sides 26 and 27 gradually becoming sharper from the center 28 toward the outer peripheral edge 29, and drive the movable blade 2. In the crushing device, the object I is sandwiched between the two blades 1 and 2 and crushed by being rotated toward the fixed blade 1 side by the body 6, and the fixed blade 1 is attached to the frame 11. The frame body 11 is made up of an upper plate 14 facing sideways and separated from each other by an appropriate distance.
A hollow portion 40 is provided between the lower plate 15 by fixing the reinforcing plate 17 vertically and horizontally. A plurality of claws 19 each having a fitting space 41 are spaced apart from each other and arranged, and the tips of the claws 19 are connected by a connecting member 20.
2 is fixed to the frame material 11 by covering its fitted space 41 on the top and bottom of the frame material 11, and the crushing protrusions 5a and 5b are arranged such that the diameter of the crushing protrusion 5a at the back is the same as that of the crushing protrusion at the front. 5b, the tip 7 of the movable blade 2 protrudes forward to approximately the same position as the tip 8 of the fixed blade 1, and the tip 7 of the movable blade 2 is made to have the same tip as the tip 3 of the movable blade 2. A crushing device characterized in that a peeling protrusion 50 is formed to protrude forward from the portion 3.