JPS63277131A - Truck loader - Google Patents

Abstract

PURPOSE:To carry out loading into a truck with high efficiency in a cargo working truck loader used in the coal yard of a thermoelectric power plant, etc. by providing a conveying device for conveying and dumping down a bulk material to the opposite side to a scraper conveyor via the top of a machine body. CONSTITUTION:The part of a scraper 11 between first and third chain sprockets 6, 8 is brought along the slope S' of a coal heap S. When the scraper 11 is rotated by driving a prime mover, coal is scraped down from the upper part to the lower part by means of blades 10 in the part between the first and third chain sprockets 6, 8 and conveyed to the inlet opening part of a trough 12. Then, the coal is lifted up as it is inside the trough 12 by the blades 10 and conveyed up to the outlet opening part of the trough 12. From there, the coal is dumped down so as to be loaded on the truck T. And, then, by moving a crawler belt 1 parallel to the slope S' while rotating the scraper 11, a defined quantity of coal can be continuously loaded into the truck T.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a truck loader for loading bulk materials onto a truck.

[Conventional technology and its problems]

Conventionally, there has been a front conveyor that has a rotating bucket or a scraper at one end that faces the bulk material pile that is to be loaded, and is configured to be able to move up and down, and the rear end of this front conveyor faces the pile of bulk materials that is to be loaded. , and a rear conveyor for loading onto a truck is known (for example,
Special Publication No. 40-23813, Publication No. 52-2495
(See Publication No. 0, etc.)

The system also includes a chain conveyor with one end facing downward and having scraper claws protruding from the loose objects, and a rear conveyor from which the rear end of the chain conveyor faces and is used for loading onto trucks. Track loaders are known (see, for example, Japanese Patent Publication No. 42-18088).

However, when loading bulk materials, all of these conventional track loaders have to move the aircraft closer to the pile of bulk materials and, in some cases, make double movements to return to the trunk. There was a disadvantage that it took a lot of time to load the truck.

On the other hand, the scale of thermal power plants has become enormous in recent years, and scrapers and side loaders have been adopted in place of conventional bridge cranes as loading and unloading equipment for coal yards. This is useful when it is divided into two parts.

However, when the above-mentioned trunk loader is applied to cargo handling equipment in a coal storage yard, it requires a long operation time, and conventional scrapers and shovel loaders also have the following drawbacks.

Namely: 1) Since the coal was taken from the bottom of the pile, the top collapsed and dust was collected.

2) The work environment was dangerous for the driver, as the shovel loader was buried. 3) Loading was inefficient because there was a discrepancy between the amount of cargo handled by the shovel loader and the amount loaded onto the truck. 4) There was a lot of falling coal and dust from the shovel loader, which was a problem in terms of pollution control.

[Means for solving problems]

Therefore, the present invention was created in order to eliminate the drawbacks of the conventional example, and in particular, to eliminate the drawbacks of the conventional track loader and to make cargo handling work at a coal storage yard of a thermal power plant more comfortable, for example. The gist of this is as follows:
On an aircraft body equipped with wheels for ground running, such as a crawler belt, have a scraping length that is at least approximately the same length as the length of the slope in the height direction of the bulk pile, and scrape along the slope of the bulk pile. An inclined scraper conveyor is connected to the lower end of the scraper conveyor and rotates downward from the top of the machine.
The truck loader is equipped with a transport device for dropping the material.

[Embodiments] The structure and operation of the present invention will be described in detail based on embodiments shown in the accompanying drawings. FIG. 1 is a front view of the first embodiment of the present invention, FIG. 2 is a schematic plan view of FIG. 1, FIG. 3 is a sectional view taken along line XX in FIG. FIG. 5 shows a schematic plan view of FIG. 4.

As shown in FIGS. 1 and 2, the first embodiment shows a truck loader suitable for use in a coal storage yard of a thermal power plant, and is used to load coal from a coal pile S to a truck T. It is something to do.

Such a track loader has the following configuration. That is, a pillar 3 is erected on a rotating frame 2 equipped with a crawler track 1 (or wheel), and at the base of the pillar 3,
A substantially inverted triangular boom 5 is supported by a pin 4 and extends left and right and downward when viewed from the front.

First, second, and third chain sprockets 6, 7, and 8 are installed on each of the left, right, and lower ends of the boom 5 with the boom 5 in between, and the first chain sprocket 6 is connected to the coal pile S
Place the bracket 6 at a slightly higher position (approximately 3 to 5 m).
The second chain sprocket 7 is installed through the bracket door A at a position above the loading platform of the truck T (10t dump truck) (5 m above the ground surface GL), and the third chain sprocket 7 is installed through the bracket door A.
The chain sprocket 8 is close to the ground surface GL, and
Bracket 8A is placed between the rotating frame 2 and the coal pile S.
It is provided through.

These first, second and third chain sprockets 6.7.
A pair of chains 9.9 are wound around the outer circumference of the boom 5, and a blade 10 is attached between these chains 9.9 as shown in FIG. 3 to form a so-called double-row chain scraper 11. It consists of Therefore, the first and third
The scraper 11 between the chain sprockets 6 and 8 is formed along the slope S° of the coal pile S. In this specification, this portion is also particularly referred to as scraper cone hair.

A closed trough 12 is provided between the second and third chain sprockets 7.8, which opens as an artificial opening in the vicinity of the third chain sprocket 8 and as an outlet in the vicinity of the second chain sprocket 7. , scraper 1 inside trough 12
1 is running.

A pair of scrapers 13A and 13B in contact with the ground surface GL are pivotally attached to the inlet opening of the trough 12, and the scraper in front of the track loader of this embodiment, for example 13B in FIG. 2, is retracted. The scraper plate 13A at the rear of the vehicle is provided to prevent any scraping from occurring.

Further, a chute 14 is suspended from the outlet opening of the trough 12 and is exposed above the trunk T.

In FIG. 1, 15 is a pair of cylinders telescopically connected between the rotating frame 2 and the boom 5, and 16 is fixed to the boom 5 with a dust cover. Reference numeral 17 indicates a rail for preventing the chain 9 from being wound around the second chain sprocket 7. In addition, in Fig. 2, 18 is a driver's cab installed above pillar 3;
19 is a driving engine, 20 is an engine oil tank, 21 is a water tank for dust prevention, 22 is a water pump, 2
3 indicates a chain prime mover.

Although not shown, if a grounding sled or a grounding wheel is attached to the boom 5 near the third chains brokent 8, the lower end of the scraper 11 can be easily positioned by the expansion and contraction action of the cylinder 15.

Since this embodiment has a soft soil structure, the following operations are performed. That is, the track loader of this embodiment is moved to a predetermined coal pile S location. Upon such transition, the third
The chain sprocket 8 is moved away from the ground surface GL by the contraction of the cylinder 15, but when the track loader is stopped at a predetermined position, the cylinder 15
Due to the elongation action, the third chain sprocket 8 is positioned slightly away from the ground surface GL and at the foot of the coal pile S, and the rotating frame 2 is also rotated, so that the first and third chain sprockets 6. The scraper 11 between the 8 spaces is made to lie along the slope S' of the coal pile S. Therefore, when the scraper 11 is rotated by starting the driving force 823,
The coal is scraped from top to bottom by the blades 10 with 6.8n strokes of the first and third chain sprockets, ie scraped off by the scraper blades, and conveyed to the inlet opening of the trough 12. Next, the coal is directly lifted into the trough 12 by the blade 10 and released into the trough 12.
is conveyed to the exit opening of the From there, it is dropped onto truck T for loading. Here, when the scraper 11 rotates and the crawler track 1 is moved parallel to the slope S'' in the direction C in FIG. 2, a predetermined amount of coal can be continuously loaded onto the truck T.

Next, the second embodiment of the present invention will be described as follows, with only the differences from the first embodiment. That is, as shown in FIGS. 4 and 5, the chute 14 is fixed to the pillar 3, and a rear belt conveyor 24 is provided connected to the chute 14. Further, the axis of the second chain sprocket 7 is a pivot shaft 25 that is pivotally supported on the pillar 3, and the first and third chain sprockets 6.8 and the second
, the boom between the third chain sprocket 7.8 5^,
5B, and the axis of the third chain sprocket 8 is used as the pivot shaft 26. The boom 5A is connected to the pillar 3 by a pair of lobes 27, 27, and the rear belt conveyor 24 is connected to the pillar 3 by a rope 28 and a bifurcated member 29.

Therefore, in the second embodiment, the cylinder 15 is connected to the boom 5B, and the boom 5A and the column 3 are
27, the inclination angle α of the scraper 11 between the first and third chain sprockets 6.8 can be adjusted by the expansion and contraction action of the cylinder 15. In addition, although the inclination angle of the rear belt conveyor 24 is constant,
Since the upper end of the belt conveyor 28 is mounted so as to be able to swing slightly on a horizontal plane, the position of the discharge chute 30 of the rear belt conveyor 24 changes, creating an IA node at the loading position.

Although this embodiment has been described using a truck loader for loading coal in a coal storage area of a thermal power plant, the present invention is not limited to this, and can be applied to any non-adhesive bulk materials such as wood chips and foundry sand. , either is fine.

〔Effect of the invention〕

According to the present invention, the scraper conditioner hair is separated.

Simply place the lower end at the foot of the mountain, rotate it from top to bottom, and move the machine parallel to the slope of the bulk pile using the traveling wheels. This greatly reduces the number of times the aircraft has to move around the pile of loose materials, allowing for highly efficient loading onto trucks.

In addition, the scraper conveyor that rotates from top to bottom and the conveyance device that passes over the machine body can be balanced, allowing stable loading.

Incidentally, if the present invention is applied to a coal storage yard, the problems in the conventional coal storage yard can be solved.

[Brief explanation of the drawing]

FIG. 1 is a front view of the first embodiment of the present invention, and FIG. 2 is a front view of the first embodiment of the present invention.
3 shows a sectional view taken from XX in FIG. 1, FIG. 4 shows a front view of the second embodiment of the present invention, and FIG. 5 shows a schematic plan view in FIG. 4. show. ■...Crawler belly band, 2...Swivel frame, 11.
... Scraper, 12... Trough, 24... Rear belt conveyor, S... Coal pile, So... Slope, T...
··truck. Figure 3

Claims (1)

[Scope of Claims] A machine body equipped with ground running wheels such as crawler tracks, which has a scraping length that is at least approximately the same length as the slope length in the height direction of the bulk pile, and An inclined scraper conveyor that rotates from top to bottom along the slope of A track loader with equipment and.