JP2001073563A - Crusher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable large crushing and fine cutting of an object to be crushed by a same crusher by finely cutting the object to be crushed taken in the crusher by crushing by the crushing teeth of a crushing drum rotating and delivering from the crusher. SOLUTION: A crusher is pivotally mounted by the claw 18 and the pin 6 of a bucket-like frame 1 mounted pivotally by pins 30, 30 on the edge of the rotating arm A of a civil engineering machine to sandwich and crush the object C to be crushed such as a concrete lump between the crushing claws 4 of an arm 5 inclined by a hydraulic cylinder 9 to be taken in the crusher. The crushing drum 14 radially forming crushing teeth 13 is rotated by a hydraulic motor 12, the object C to be crushed is finely cut between the inner wall faces 8 of a frame 1, and delivered from the delivering outlet of the frame 1. Thereby large crushing and fine cutting of the object C to be crushed can be performed by the same crusher. When a part of the crushing drum 14 is projected and delivered from the delivering outlet 3, a base or the like is cut by the crushing drum 14 to be flattened.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crusher for crushing concrete pieces and other wastes at a building demolition site and the like to shred the pieces.

[0002]

2. Description of the Related Art A conventional crushing machine requires a hydraulic crusher for roughly dividing a work and a working machine for further dividing the crushing machine when processing concrete lumps and the like. Alternatively, the attachment must be replaced, and the adjustment for obtaining the final accuracy is complicated.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide a machine which can solve the above-mentioned drawbacks with a single crusher and can perform large crushing and small shredding quickly in one step. To provide.

[0004]

The means of the present invention are as follows.

[0005] A bucket-shaped frame is attached to a rotating arm installed on the body of the civil engineering machine, and an arm provided with crushing claws in the frame is pivotally connected to the bucket-shaped frame so as to be able to approach and separate from the frame. A crushing drum to which the working cylinder of the arm is connected, crushing teeth projecting radially in the vicinity of the shredded material discharge port at the lower bottom of the bucket-shaped frame, and a crushing machine equipped with the working cylinder.

[0006]

1 to 3 show a first embodiment, and FIGS. 4 and 5 show a second embodiment. First, reference numeral 1 in the first embodiment denotes a bucket-shaped frame which is attached to the tip of a rotating arm A of a civil engineering machine B shown in FIG. At the open upper end of the bucket-shaped frame 1, there is formed a recess 2 into which a long crushed object C fits, and at the lower bottom, an outlet 3 for the shredded crushed object. An arm 5 provided with a crushing claw 4 at its tip is accommodated in the frame 1, and the lower end thereof is pivotally connected to the frame 1 with a pin 6, and an inner wall surface 8 of the frame 1 having a claw 18 formed thereon
And the arm 5 having the crushing claw 4 are opposed to each other, and a hydraulic cylinder 9 operable in a cab of the main body is connected between the arm 5 and the frame 1 by pins 20 and 21. Thus, the crushing space (a) 1 is provided between the arm 5 having the crushing claw 4 and the frame claw 18.
0 is formed, and the arm 5 is moved to the claw 1 with the operation of the cylinder 9.
The crushing space (a) 10 is crushed by repeatedly approaching and separating from the frame 1 having the frame 8 to crush the concrete block C and the like. In the present invention, a hydraulic motor 12 is pivotally mounted near a pivot point 6 of the arm 5, and a crushing drum 14 having a plurality of crushing teeth 13 radially protruding is mounted thereon. The work to be crushed C passing through the space (b) 19 between the crushing drum 14 and the inner wall surface 8 of the frame is cut by the rotation of the drum and the claw and sent out from the discharge port 3.

Next, a second embodiment shown in FIGS. 4 and 5 is characterized in that a part of a crushing drum 14 having crushing teeth 13 projecting radially is exposed and protrudes from the frame 1. Thus, the work to crush the large crushed material falling between the arm 5 and the crushing drum 14 is further finely crushed and sent out from the discharge port 3. Further, as shown in FIG. The work of automatically pressing and cutting the roadbed D or the like to be deposited can also be executed.

[0008]

As described above, the crushing machine of the present invention can be continuously executed in both large crushing and small crushing of concrete waste, etc. with a single body, and breaks down the idea as a conventional crushing machine. It will be a machine for civil engineering work with outstanding performance.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional side view of a first embodiment.

FIG. 2 is a side view showing a large split state.

FIG. 3 is a vertical sectional side view of a small split state.

FIG. 4 is a longitudinal sectional side view showing a second embodiment.

FIG. 5 is a longitudinal side view showing a road surface cutting state.

FIG. 6 is a perspective view of a use state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Frame 2 Notch 3 Discharge port 4 Crushing claw 5 Arm 6 Pin 8 Inner wall surface 9 Hydraulic cylinder 10 Crushing space (a) 12 Hydraulic motor 13 Crushing tooth 14 Crushing drum 18 Claw 19 Crushing space (b)

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (Reference) E02F 3/36 E02F 3/36 A

Claims (1)

[Claims] 1. A bucket-shaped frame is attached to a rotating arm installed on the body of an earth-moving machine, and an arm provided with crushing claws in the frame is pivotally attached to the bucket-shaped frame so as to be able to approach and separate from the bucket-shaped frame. A crushing drum connected to the working cylinder of the arm and having crushing teeth protruding radially in the vicinity of the shredded material discharge port at the lower bottom of the bucket-shaped frame; and a crushing machine equipped with the working cylinder.