JP3126022B2 - 2-shaft shear crusher - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a two-shaft shearing crusher for crushing waste such as felled trees, building waste, and bulky waste.

[0002]

Conventionally, as a biaxial shearing-type crusher of this type, apparatus for crushing an object of JP Omotetaira 5-505558 JP are known. In this apparatus, for example, as shown in FIG. 4, a number of slits 42 covering almost the entire width in the width direction (the horizontal direction in FIG. 4) are formed in the bottom portion 41a in the depth direction (in FIG. 4, the direction perpendicular to the paper). And a box-shaped casing 41 provided in parallel with and spaced apart from each other, and two shafts disposed on the bottom 41a of the casing 41 at right angles to the slit 42 and parallel to each other and rotated forward and backward in different directions. 43, a fixed blade 44 positioned between both shafts 43 and attached to the side surface of each slit 42, and a plurality of U-shaped edges 45a, 45b, 45c opened in the rotation direction of the shafts 43
It has a semicircular shape having two forward rotation directions and one reverse rotation direction and is attached to both shafts 43 with a phase shift, the periphery is spaced between the two shafts 43, and one side is fixed to each side. Blade 4
4 is provided with a rotary blade 45 slidably contacting the side surface of the rotary blade 4. In the figure, reference numeral 46 denotes a gantry on which the casing 41 is mounted. The gantry 46 is a conveyor (not shown) for carrying out the crushed product.
have. The rotating blades 45 which rotate the waste such as felled trees, building waste, and bulky trash supplied from above to the casing 41 with the rotation of both shafts 43 are provided.
While being transported between the two shafts 43, bent and torn, and also sheared and crushed in cooperation with the fixed blade 44, dropped as a crushed product from the slit 42 of the bottom 41a, and carried out of the machine by the conveyor. Things.

[0003]

However, in the conventional two-shaft shearing crusher, since the rotary blade 45 has a semi-disc shape, as shown in FIG. 4, the edges 45a, 45b,
When 45c is located on the side surface of the casing 41, the slit 42 is opened, and a problem that the rod-like waste or semi-crushed product W of about 1 m slips through the slit 42 without undergoing any or sufficient crushing treatment. is there.
Accordingly, an object of the present invention is to provide a two-shaft shearing crusher capable of preventing rod-shaped waste or the like from slipping through without undergoing crushing treatment.

[0004]

In order to solve the above-mentioned problems, a two-shaft shearing crusher according to the present invention comprises a box-shaped casing having a plurality of slits provided in parallel at the bottom, and a slit at the bottom of the casing. Are arranged parallel to each other at right angles,
A semi-circle having two shafts rotated in different directions, a fixed blade positioned between both shafts and attached to the side surface of each slit, and a plurality of U-shaped edges opened in the shaft rotation direction. A two-shaft shearing crusher having a rotating blade which is attached to both shafts in a shape and whose peripheral edge is spaced between the two shafts, and one side surface of which is in sliding contact with the side surface of each fixed blade. , A trapezoidal section extending parallel to the axis below the fixed blade
A baffle plate is provided.

[0005]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 are a plan view showing an example of an embodiment of a two-shaft shearing crusher according to the present invention, and an enlarged sectional view taken along line II-II in FIG. 1 in the figure is the bottom 1
a is a rectangular box-shaped casing in which a number of slits 2 covering substantially the entire width in the width direction (the left-right direction in FIG. 2) are provided in parallel in the depth direction (the left-right direction in FIG. 1) as appropriate. The casing 1 is mounted on a gantry 3 having a conveyor (not shown) for carrying out crushed products. On the bottom 1a of the casing 1, two shafts 4 are respectively arranged in parallel with each other at a right angle to the slit 2 through a plurality of bearing brackets 5, and a gear box (FIG. (Not shown) or a driving device such as a hydraulic motor 6 so as to be rotatable forward and backward in different directions. A fixed blade 7 for shearing and crushing the waste in cooperation with a rotary blade described later is mounted on the side surface of each slit 2 at the bottom 1a of the casing 1 so as to be located between the two shafts 4. On the other hand, the two shafts 4 have a plurality of U-shaped edges 8a, 8b, 8c (two in the normal rotation direction (arrow A direction in FIG. 2) and one in the reverse rotation direction) opened in the rotation direction of the shaft 4. The rotating blades 8 having a semicircular shape are attached to the slits 2 in a phase-shifted manner via flanges 9 attached to the shafts 4 so as to correspond to the slits 2, and the peripheral edges of the rotating blades 8 are spaced apart by a small distance between the shafts 4. Further, one side surface is brought into sliding contact with the side surface of each fixed blade 7. Below the fixed blade 7, a baffle plate 11 having a trapezoidal cross section extending parallel to the axis 4 is provided.
The casing 1 is appropriately spaced from the bottom 1 a of the casing 1.

In the two-shaft shearing crusher having the above-described structure, waste such as felled trees, building waste, and oversized refuse supplied from above the casing 1 is rotated by the rotating blades 8 that rotate with the forward rotation of the two shafts 4. Is transported between the two shafts 4 while being bent and torn, and is also sheared and crushed in cooperation with the fixed blade 7, falls as a crushed product from the slit 2 in the bottom 1 a, and is conveyed to the gantry 3. Is carried out of the machine. When the rotary blade 8 is overloaded during the above-described waste crushing treatment, the waste is moved to the inner surface side of the casing 1 by the reverse rotation of the shaft 4. As shown in FIG. 3, when the edges 8a, 8b, 8c of the rotary blade 8 are located on the inner side of the casing 1 and the slit 2 is opened, a rod-like waste or semi-crushed product W of about 1 m is opened. Although but when you Surinukeyo slit 2, is deter falling by horizontal <br/> baffle 11, are crushed by the rotary blade 8 that rotates along with the forward rotation of the continue come axis 4 and the fixed blade 7 Broken
The crushed product falls along the inclined surface of the baffle plate 11 and falls.
By 3 of the conveyor Ru der shall be carried out to the outside of the machine.

[0007]

As described above, according to the two-shaft shearing crusher of the present invention, 1 m is required to pass through the slit.
Since the stick-shaped waste or semi-crushed product is prevented from falling by the horizontal surface of the trapezoidal baffle plate , it is possible to prevent the stick-shaped waste from slipping through without undergoing the crushing treatment. And the crushed product crushed in this state
As it is guided by the inclined surface of the plate and falls,
Ru it is possible to prevent the slipping of such wastes.

[Brief description of the drawings]

FIG. 1 is a plan view showing an example of an embodiment of a two-shaft shearing crusher according to the present invention.

FIG. 2 is an enlarged sectional view taken along line II-II in FIG.

FIG. 3 is an operation explanatory view of the twin-shaft crusher of FIG. 1;

FIG. 4 is an operation explanatory view of a conventional two-shaft shear crusher.

[Description of Signs] 1 casing 1a bottom 2 slit 4 axis 7 fixed blade 8 rotary blade 8a edge 8b edge 8c edge 11 baffle plate

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Nobuyuki Katagiri 1780 Kamikono, Yachiyo-shi, Chiba Pref. Kawasaki Heavy Industries, Ltd. Yachiyo Plant (56) References Japanese Utility Model 6-63144 (JP, U) Japanese Utility Model 4 -5239 (JP, U) Actually open 63-39438 (JP, U) (58) Fields surveyed (Int. Cl. ⁷ , DB name) B02C 18/00-18/44

Claims (1)

(57) [Claims] 1. A box-shaped casing having a plurality of slits provided in parallel at a bottom portion thereof, and two shafts arranged on the bottom portion of the casing at right angles to the slits and rotated in mutually different directions. And a fixed blade positioned between the two shafts and attached to the side surface of each slit, and a semi-circular shape having a plurality of U-shaped edges opened in the rotation direction of the shaft, attached to both shafts, In a two-axis shearing type crusher having a rotating blade having a space between two shafts and having one side slidably in contact with the side surface of each fixed blade, a shaft parallel to the shaft below the fixed blade. A two-shaft shearing crusher comprising a stretched trapezoidal baffle plate.