JP2617653B2 - Chip handling equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chip handling device.

[0002]

2. Description of the Related Art As shown in FIG. 6, a chip handling operation of a chip ship is performed by loading a work machine 8 such as a power shovel or a bulldozer into a hold 7 (hold) of the chip ship 1 as shown in FIG. The chips 4 are raked near the center of the hold 7, and the raked chips 4 are gripped by a land-based clamshell bucket 3 or the like and moved to a conveyor device 6 having a land-side hopper 5 or the like. The chip 4 attached to the wall was scraped off manually.

In general, the inner surface (wall surface) of the hold 7 has irregularities, and the corners and the like have a narrow structure. Since the chips are housed therein, free compaction and the like are added, and the chips are considerably attached to the wall surfaces. It is in a state where it is firmly attached (fixed).

[0004]

However, such a conventional system has the following problems. (1) In a poor working environment, it is hard work to scrape off the chips attached to the hold wall by human power. (2) There is a problem in safety because a working machine for scraping chips and a scraper are mixed in a narrow hold. (3) Human power is inefficient. (4) It is dangerous to work at height.

The present invention has been developed to address such a problem, and has as its object to enable a single working machine to scrape and scrape chips.

[0006]

In order to achieve the above-mentioned object, the present invention relates to a scraper 11 attached to the tip of a swing arm 22 of a working machine 17 such as a power shovel via a connection fitting 12, and In a chip loading / unloading device comprising a scraping claw 11 and a scraping bucket 10 detachably attached via a lock device 16 built therein, a nozzle diameter 2 for jetting high-speed air to the tip of the scraping claw 11
An air jet nozzle 26 having a diameter of 0 mm or more is provided.

[0007]

According to the above means of the present invention, the chip is scraped off mechanically by a scraping claw and fluidly scraped off by an air nozzle jet equipped on the claw, and both are simultaneously used. Chipping (mechanical scraping with a nail while blowing air), depending on the properties of the chip and other factors. After the chip has been scraped off the wall, the scraper is hooked to the bucket, the bucket and the hook are integrated by a lock device built into the nail, and the bucket is used to scrape the chip to the center of the hold. The scraping claw has a "spatial" shape and can be easily inserted into the mounting space on the back of the bucket to be integrated or separated.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. In FIG. 1, a power shovel is used as a working machine 17 and a blower 18 is mounted on a rear portion. A boom 21 serving as a link mechanism and a scraper 11 and a (wide) bucket 10 are provided at the ends of an arm 22.

2 and 3 show a detailed view of the tip.
The scraping claw 11 has a shape like "spatula" and is used for scraping off the chip fixed to the wall surface of the hold. The scraping claw 11 is inserted into a concave portion on the back surface of the bucket 10 and is appropriately connected integrally by a lock device 16. Scratching nail 11
Is connected to the arm 22 via the connection fitting 12, and a swing jack 14 is attached between the two. Scraping nail 1
1 has a lock device 16 built therein. A wedge 24 is attached to the tip of the lock jack 23, and two sets of the lock devices 16 are mounted on the slope of the wedge 24. Also, a spring 25 is provided to shrink the lock device 16 when the wedge 24 is pulled. Reference numeral 26 denotes an air jet nozzle having a nozzle diameter of 20 mmφ or more for blowing off chips by supplying air from the blower 18 through an air pipe 20.

When the bucket 10 is mounted, the function is the same as that of a normal power shovel.
By operating the arm 22 and the bucket 10, the chips are scraped to the center position. It is also possible to swing the bucket 10 to the left and right as required by the function of the swing jack 14. Next, when scraping off the chips adhering to the hold wall surface, the bucket 10 is once removed. The procedure is to release the lock between the bucket 10 and the scraping claw 11 by contracting the fully extended lock jack 14 (in the direction of (d) in FIG. 2).
1 is pulled out in the direction of FIG. 2A, and the bucket 10 is removed. Thereafter, the scraping is performed by mechanically moving the scraping claw 11 against the chip on the wall surface or by jetting an air jet. The swinging jack 14 is effectively used to approach the narrow part to the wall surface.

FIG. 5 is a measurement diagram showing an experimental result of the degree of chip scattering based on the nozzle diameter and the flow velocity. Nozzle diameter is 20m
When mφ, the wind speed is 250m / s or more and the nozzle diameter is 25
mmφ, the wind speed is 230m / s or more and the nozzle diameter is 2
When the diameter is 7 mmφ, the wind speed is 210 m / s or more, and the scattering state of the chips is good.

[0012]

As described above, according to the present invention, the scraping claw attached to the tip of the swinging arm of the working machine through the connection fitting, and the locking device built in the scraping claw are attached to the scraping claw. Since it is composed of a scraping bucket that is detached and attached, the chip scraping operation by the scraping claw and the scraping operation by the scraping bucket attached to the scraping claw are performed by one working machine. , While requiring little input for cargo handling, improving safety, and even in narrow spaces, combining operations such as boom, arm, swing, etc., can scrape close to the wall as much as possible and equipped with an air jet As a result, chips can be safely removed without damaging the wall surface. Further, the following effects can be obtained by using an air jet. An air pump is sufficient, the structure is simple, the workability is improved, and the operation time is hardly limited. It only blows air and does not affect the composition or quality of the powder raw material. In the present invention, the scattering state by air blowing is extremely good, and after scraping, the powder raw material does not easily adhere again to the wall surface,
Subsequent cleaning is easy.

[Brief description of the drawings]

FIG. 1 is an overall view showing an embodiment of the present invention.

FIG. 2 is an exploded perspective view of a scraping claw and a bucket.

FIG. 3 is a plan view showing a combined state of a scraping claw and a bucket.

FIG. 4 is a side view showing a combined state of a scraping claw and a bucket.

FIG. 5 is a diagram illustrating a measurement of a chip scattering degree based on a nozzle diameter and a flow velocity.

FIG. 6 is a work diagram showing cargo handling of a chip ship.

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 rake collection bucket 11 scraper claw 12 connection fitting 16 lock device 17 work machine 18 blower 22 arm 26 air jet nozzle

Claims (1)

(57) [Claims] 1. A scraping claw attached to a tip of a swing arm of a working machine such as a power shovel via a connection fitting,
In a chip loading / unloading device comprising the scraping claw and a scraping bucket detachably attached via a locking device built in the scraping claw, air having a nozzle diameter of 20 mmφ or more for jetting high-speed air to the tip of the scraping claw is provided. A chip handling device equipped with a jet nozzle.