JP2001341104A - Apparatus for chipping and releasing chip material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus for efficiently chipping and discharging by scattering a coarse chip material in which various matters are mixed. SOLUTION: An upward air flow guide 50 is arranged at a bottom part of a cylindrical casing 37 in which a rotor 43 on which chip chipping inclined blades 45 inclined in a rotary shaft direction are disposed in upright at equal angle intervals is provided, and a force feed air pipe 40 wherein the diameter is almost equal to a distance between tips of the blade plate is continuously contacted in parallel to the shaft.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for shredding coarse chips and simultaneously discharging and spraying the same by a compressed air flow.

[0002]

SUMMARY OF THE INVENTION Various large and small pieces of wood (hereinafter, referred to as wastes) generated in a waste material treatment facility or a timber felling site.
Chips obtained by shredding coarse chips) are used as fertilizers, for example, and a chip layer is formed on slopes such as road regulation surfaces to prevent soil runoff, or sprayed on exposed soil surfaces to eliminate the need for ground management However, the chip material is piled up outdoors or in a wilderness and is left alone, and its moisture content and contaminants are various, and it is difficult to shred and release it. SUMMARY OF THE INVENTION The present invention provides a device that can be mounted on a chip-dispersing traveling vehicle and that can be shredded and discharged as it is even when metal waste materials are mixed therein.

[0003]

An apparatus according to the present invention comprises a cylindrical casing having a flat fixed blade provided directly below a chip material supply device fixedly mounted on a chip spreading vehicle or the like, and an inclined blade for shredding in the casing. A rotor is installed on the drum at equal angular intervals, and a rotating rotor is axially supported. A pressurized air pipe having a diameter substantially equal to the interval between the tips of the inclined blades is provided at the bottom of the cylindrical casing. And connected in parallel with the rotor shaft so as to be located between the inclined blades, and the inclination angle of the inclined blade is about 5 ° with respect to the rotor shaft.
{10} is preferable, and the axial length of the rotor is preferably determined so as not to block both ends of the compressed air pipe in the casing. Further, by providing an airflow guide at the bottom of the compressed air pipe to generate a blown airflow to the rotor drum surface, the chip discharge ability can be improved.

[0004]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A case where the present invention is mounted on a crawler type tip spreader will be described below. 1 is a hopper mounted on a frame 2 of a crawler type tip spreader, and 3 is a case body fixed to a rear portion of the hopper, and a device for quantitatively supplying chip material scraped from the inside of the hopper to a shredder. Equipped with a discharge device.

In the present invention, the internal configuration of the hopper 1 is arbitrary, but one example thereof is that a chain conveyor 20 for scraping out chips is disposed in the longitudinal direction of the bottom of the hopper as shown in FIGS. 21. 31
Is a hydraulic motor, and 32 is a speed reducer. Reference numeral 25 denotes a supply device for regulating the scraping amount of the chip material. A plurality of claws 27 protrude from the rotary drum 26 and are provided above the discharge side of the chain conveyor 20.

Reference numeral 35 denotes a rotary shredding device,
And is fixed 36 at the rear end of the frame. 37 is a cylindrical casing, 38 is a band-shaped receiving opening opened on the upper surface, 39 is a fixed blade, 40 is a pressure-feeding air pipe connected to the bottom of the casing, and the inlet side 41 is connected to a pressurized air source (not shown), The outlet side 42 is connected to a spray hose (diameter 3 to 6 inches) not shown. Numeral 43 denotes a rotor for shredding and discharging the chip material.
A large number of blades 45 serving as rotary blades are erected on the upper side and mounted at an angle of 7 ° with respect to the rotary shaft 47. The radial rotary blades are bolted so that they can be replaced with respect to the rotor drum, and the blade plate tip 45a serves as a cutting blade. 46 is a receiving portion for receiving the chopped chips in an air space between the blades, 48 is a reduction gear, and 49 is a hydraulic motor.

[0007] The compressed air pipe 40 is provided in parallel with the rotor shaft, and a trapezoidal or mountain-shaped air flow guide 50 is fixed in the axial direction at an air pipe bottom 40a substantially immediately below the rotor. 51
Is a front slope, and 52 is a rear slope.

The chip material near the receiving port 38 is cut into pieces having a size of about 3 to 5 cm or less by the flat fixed blade 39 and the tip blade 45a of the rotating inclined blade 45, and the receiving portion 46 is cut.
And is guided and transported in the casing to reach the air pipe 40 connected to the bottom of the casing. In the pipe, a high-speed airflow is generated in which the air from the pressurized source is accelerated toward the rotor drum surface by the front slope 51, and this airflow is received by the receiving portion 4.
6. Blow away the shredded chips in 6 and send them to the discharge side. Since the angle of inclination of each rotary blade 45 is relatively gentle, the air pipe passage is not blocked by the blade, and a swirl flow is generated on the discharge side by the inclination of the blade, which is convenient. Air pressure (0.6kg / cm ² · G ~
1.0 kg / cm ² · G) and the rotor speed (30 to 80)
rpm) is adjusted depending on the material of the chip, the wet state and the place of application, but the air flow in the pipe is about 5 m / sec to 15 m / sec.
The speed of c.

[0009]

According to the present invention, since the tip material is cut by the inclined blade rotating blade with respect to the fixed blade, the load on each rotating blade is dispersed over time so that rotation unevenness does not occur. The cut tip can be pumped into the air tube. In the air pipe, the chips in the receiving section are scraped out by the upward high-speed airflow that flows continuously without interruption, and are simultaneously drawn into the pipe and transported. Further, the upward high-speed airflow is provided with a swirling force in the tube axis direction by the inclination of the rotating blades and turns into a swirling airflow on the discharge side, so that there is an advantage that the tip discharge distance by the hose can be extended.

[Brief description of the drawings]

FIG. 1 is a side view of a spreader truck equipped with the device of the present invention.

FIG. 2 is an overall vertical side view of the shredding / discharging device of the present invention.

FIG. 3 is a partial vertical front view of the same device.

FIG. 4 is a perspective view of a rotor.

FIG. 5 is a top view of a chip material receiving portion.

FIG. 6 is a sectional view of a main part of the discharging device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Chip material input hopper 2 Frame 3 Case body 20 Chain conveyor 25 Chip material supply device 26 Rotary drum 35 Rotary shredding device 37 Cylindrical casing 38 Chip material receiving port 39 Fixed blade 40 Pressure air pipe 41 Inlet side 42 Exit side 43 Shredding / discharge rotor 44 Drum 45 Blade plate 46 Receptor 50 Air flow guide 51 Front slope 52 Rear slope

Claims (3)

[Claims] A rotary rotor having cutting blades arranged at equal angular intervals on a drum in a cylindrical casing having a flat plate-shaped fixed blade and opened directly below a chip material supply device;
A pressurized air pipe having a diameter substantially equal to the interval between the tips of the inclined blades is provided at the bottom of the cylindrical casing in parallel with the rotor shaft so that its virtual semicircle is located between the drum surface and the inclined blades. Chip material shredding / discharging device. 2. The inclination angle of the inclined blade is about 5 degrees with respect to the rotor axis.
3. The chip material shredding / discharging device according to claim 1, wherein both ends of the compressed air pipe are not closed in the cylindrical casing. 3. The chip material shredding / discharging device according to claim 1, wherein an air flow guide is provided at the bottom of the compressed air pipe.