JP3327511B2 - Crusher for concrete lump and other waste lump for civil engineering machinery - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete crusher for civil engineering machinery and a crusher for crushing concrete lumps and other waste lumps generated from a building demolition site.

[0002]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a crusher capable of easily processing waste lump using a civil engineering machine which can be operated by a single driver.

[0003]

The first means of the present invention is as follows.
A central rotating shaft is erected on the cylindrical main body attached to the tip of the turning arm of the civil engineering machine, and rotating crushing teeth are protruded around it, and fixed to the inner peripheral surface of the cylindrical main body facing the rotating crushing teeth It is provided with teeth. The second means is that the rotary crushing teeth are large at the top of the cylindrical main body and small at the bottom. Further, a third means is a conical crushing cylinder in which a bucket is detachably attached to the tip of a turning operation arm, a plurality of rotating shafts are erected in the bucket, and crushing teeth are provided on each rotating shaft so as to protrude all around. Are provided facing each other.

[0004]

1 to 3 show a first embodiment of the present invention.
FIG. 4 to FIG. 6 show a second embodiment. 1 and 2, reference numeral 1 denotes a bucket-shaped cone-shaped main body, which penetrates up and down, and has a scooping portion 2 at an upper end and a rotating shaft 3 standing at the center. The rotating shaft 3 is a connecting piece 3 as shown in FIG.
The hydraulic cylinder 4 is mounted between the main body 1 and the connecting piece 30 so that the rotating shaft 3 is rotated left and right. 5, 6,
Reference numeral 7 denotes a rotating crushing tooth fixed to the rotating shaft 3, which faces a fixed crushing tooth 8 provided along the inner peripheral surface of the cone of the main body 1. The rotating crushing tooth gradually reduces the diameters of 5, 6, and 7 to smaller diameters. is there. Numeral 9 denotes a vertical adjusting type bearing of the rotating shaft 3 and a height adjusting spacer 9a is additionally provided. Reference numeral 12 denotes a fixing portion of the civil engineering machine main body 10 shown in FIG. In addition, a conical crushing cylinder 15 is fixed to the rotating shaft 3, and rotary crushing teeth 16 are helically protruded on the peripheral surface thereof, and the inner peripheral surface of the main body 1 is gradually narrowed downward with the fixed teeth 8. A forming portion 21 of the road 20 is provided. 2
Reference numeral 2 denotes a hydraulic motor with a speed reducer for operating the rotating shaft 3. In the second invention shown in FIG. 7, the rotary crushing teeth 5 of the conical crushing cylinder 15 are formed such that the upper portion is larger and the shape of the teeth is gradually reduced toward the lower portion.

[0005] Thus, a large concrete mass is crushed by the large crushing teeth 5A above the crushing teeth 5 of the conical crushing cylinder 15 and descends as it becomes smaller, and finally descends to the fine teeth 5.
It can be made smaller by E and can be discharged from the falling port 40 (see FIG. 4) at the bottom of the main body 1. In the third invention shown in FIG. 8, the main body 1 is a bucket type, and conical crushing cylinders 15 having crushing teeth 5 protruding from two vertical rotating shafts 3a and 3b are fixed to face each other, Rotate the crushing cylinder 15 in the opposite direction,
The concrete lump scooped into the bucket 1 is crushed by crushing teeth 5. In the figure, reference numeral 41 denotes a motor.

[0006]

According to the first aspect of the present invention, since the present invention has the above-described configuration, the concrete mass scooped up in the main body is brought into contact with the rotating crushing teeth opposed to each other by the right-left rotation or the rotation of the rotary shaft. It can be crushed between fixed crushing teeth, broken down and dropped. Next, in the second invention, the shape of the crushing teeth is gradually reduced from the larger one toward the outlet part from the inlet part, so that a large concrete block can be crushed and the crushed block can be made smaller and more uniform. There are advantages such as. Furthermore, in the third aspect, it is possible to efficiently crush the concrete by introducing a concrete lump between the opposing crushing cylinders.

[Brief description of the drawings]

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

FIG. 2 is a sectional view taken along line AA ′ of FIG. 1;

FIG. 3 is a plan view showing a left-right rotation mechanism of a rotation shaft.

FIG. 4 is a longitudinal sectional side view showing another example.

FIG. 5 is a sectional view taken along line BB ′ of FIG. 3;

FIG. 6 is a perspective view of a civil engineering machine to which the crusher of the present invention is attached.

FIG. 7 is a perspective view of a crushed cylinder of the second invention.

FIG. 8 is a vertical side view of the third invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cylindrical main body 3 Rotating shaft 4 Hydraulic cylinder 5, 6, 7 Rotating crushing tooth 8 Fixed crushing tooth 10 Civil engineering machine body 11 Rotating operation arm

Claims (3)

(57) [Claims] 1. A cylindrical body is detachably attached to a tip of a turning operation arm provided on a body of an earth-moving machine, and a plurality of rotary crushing teeth are protruded around a rotary shaft erected at the center of the cylindrical body. A concrete crusher for civil engineering machines and other waste aggregate crushers, wherein fixed crushing teeth are provided on the inner peripheral surface of a cylindrical main body so as to face the rotating crushing teeth of the rotating shaft. 2. The crushing machine for concrete and other waste aggregates for civil engineering machinery according to claim 1, wherein the shape of the rotary crushing teeth is large at the top and small at the bottom. 3. A cone-shaped crusher in which a bucket is detachably attached to a tip of a turning operation arm provided in an earth-moving machine, and crushing teeth are provided on each of a plurality of rotating shafts erected in the bucket on the entire circumference. A concrete lump for civil engineering machinery and other waste lump crushers, wherein cylinders are provided to face each other, and the opposing conical crushing cylinders are rotated in opposite directions to crush concrete lumps between the conical crushing cylinders. .