JPH1179413A - Bulk material delivery device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attain size reduction in a gear box, and provide the large speed reduction ratio by constituting a speed reduction mechanism of a driving means to drive a rotary wheel out of a planetary gear, and directly connecting this planetary gear, the rotary wheel and a driving source to each other. SOLUTION: A driving means 6 to drive a delivery rotary wheel 5 extending from a main body 16 is housed in the main body 16, and a speed reduction mechanism 13 is connected to the rotary wheel 5, and a driving source 17 composed of a hydraulic motor is connected to this speed reduction mechanism 13. The speed reduction mechanism 13 connected to its driving source 17 is constituted of a planetary gear mechanism, and in this planetary gear mechanism, a sun gear 18 is connected to the driving source 17, and a fixed gear 20 is meshed with this sun gear 18 through a planetary gear 19, an arm 21 is installed on the axis 01 of the planetary gear 19, and an output shaft 22 of this arm 21 is installed on the rotary wheel 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to iron ore, coal, slag,
A bulk storage tank that stores bulk materials such as chips and gravel as it is, and relates to a bulk discharging device provided for discharging the bulk from a payout hole formed in a bottom wall of the storage tank, For example, it is used in bulk carriers and bulk storage located on land.

[0002]

2. Description of the Related Art Conventionally, as shown in FIGS. 5 and 6, for example, a hopper-type storage tank 1 for storing bulk materials is arranged in a hold 2 substantially from the bow to the stern. A drive means having a space 3 formed at its lower part over its entire length, and a wheel 5 supported at its lower end by a pair of rails 4 and 4 arranged in the space 3 in the longitudinal direction. The bottom wall 7 of the storage tank 1 which forms the bottom of the space 3 while the wheel 5 rotates in the horizontal direction while the wheel 6
By reciprocating on the upper surface of the container, the bulk material 8 loaded in the storage tank 1 passes through a slit-shaped payout port 9 formed in the center of the bottom wall 7 in a longitudinal direction, and is disposed below the bottom wall 7. It pays out on a payout conveyor 10 arranged along the payout port 9, and further transports the bulk materials paid out on the payout conveyor 10 to a ship by, for example, a vertical conveyor 11 arranged at the bow. The storage tank 1 is transported outboard by the boom conveyor 12.
It can automatically unload the bulk material inside.

As shown in FIG. 7, a driving means 6 for driving a dispensing rotary wheel 5 includes a speed reducing mechanism 13 connected to the rotating wheel 5 and a hydraulic pressure for driving the speed reducing mechanism 13 as shown in FIG. Having a motor 14, especially
The reduction mechanism 13 has a multi-stage gear train 15 composed of a large number of spur gears and bevel gears between the rotating wheel 5 and the hydraulic motor 14.
Consists of

[0004]

However, in the prior art as described above, since the speed reduction mechanism 13 is composed of a plurality of gear trains 15 including a large number of spur gears, the gear train 15 cannot be accommodated. A large space is required, and as a result, there is a disadvantage that the payout device becomes large. In particular, as the reduction ratio of the reduction mechanism 13 is increased, more gears are required, and the payout device is further increased in size. Further, the use of a large number of gears increases the number of parts, complicates assembly, and increases the cost.

[0005] It is an object of the present invention to provide a practically useful bulk dispensing apparatus which solves the above-mentioned disadvantages of the prior art.

[0006]

In order to achieve the above object, the present invention is characterized in that the reduction mechanism of the driving means for driving the rotating wheel is a planetary gear.
Moreover, it is also characterized in that the rotating wheel, the planetary gear mechanism and the drive source are directly connected.

[0007]

Preferred embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 to FIG. 4 show details of the application of the bulk material discharging apparatus according to the present invention to a bulk carrier, and the entire structure is shown in FIG. 5 and FIG. It is the same as a carrier, and detailed description is omitted.

The bulk material dispensing apparatus shown in this embodiment includes a dispensing rotary wheel 5 extending from a main body 16 and a driving means 6 for driving the rotary wheel 5. It has a reduction mechanism 13 housed therein and connected to the rotating wheel 5, and a drive source 17 connected to the reduction mechanism 13, such as a hydraulic motor.

The drive source 17 is not limited to such a configuration, and may be, for example, an electric motor directly connected to the speed reduction mechanism 13 (not shown).

It is preferable that the rotary wheel 5, the speed reduction mechanism 13 and the drive source 17 are directly connected as a unit (integrated) as shown in FIG.

It should be noted here that, for example, as shown in FIG. 4, the speed reduction mechanism 13 comprises a planetary gear mechanism. The planetary gear mechanism includes, for example, a sun gear 18 connected to a driving source 17, a fixed gear 20 meshed with the sun gear 18 via a planetary gear 19, and an arm 21 attached to a center axis O1 of the planetary gear 19. And The output shaft 22 of the arm 21 is attached to the rotating wheel 5.

Here, the rotation center axis O2 of the driving source 17 and the sun gear 18 and the rotation center axis O3 of the arm 21 coincide with each other. Therefore, the speed reduction mechanism 13 becomes more compact.

In such a speed reduction mechanism 13, the arm 2
1, that is, the rotation speed ω ₁ of the rotating wheel 5 and the sun gear 1
8, that is, the rotation speed ω ₂ of the drive source 17 is represented by the following equation.

[0015]

(Equation 1)

From the above equation, the rotating wheel 5 is connected to the driving source 1
Due to the rotation of 7, the rotation is performed at a reduced speed at a certain reduction ratio.

In order to obtain a larger reduction ratio in such a planetary gear mechanism, it is preferable to form a plurality of stages of planetary gear trains. Also in this case, the rotating wheel 5 and the speed reduction mechanism 1
3 and the drive source 17 are directly connected as shown in FIG. 3, that is, the rotation axis of the rotary wheel 5 and the drive source 17 is located on the same axis, and a plurality of stages of planetary gear trains are connected to the rotary wheel. 5 is preferably arranged along the rotation axis. In this way, the gear train of the speed reduction mechanism 13 does not expand in the radial direction of the rotation axis of the rotating wheel 5, and the drive unit 6 and the rotating wheel 5 can be compactly connected directly. Such a configuration can be achieved only because the reduction mechanism 13 is a planetary gear mechanism.

The operation of the above-described dispensing device will be described. First, when the drive source 17 is rotated, the rotating wheel 5 is rotated at a predetermined reduction speed via the reduction mechanism 13 composed of a planetary gear mechanism. In accordance with the rotation of the rotating wheel, the bulk material 8 is dropped from the loading storage tank 1 through the payout port 9 onto the payout conveyor 10.

[0019]

As described above, according to the present invention, since the speed reduction mechanism is constituted by a planetary gear mechanism, the size of the gear box can be reduced as compared with a conventional structure using a large number of spur gears. Therefore, a compact dispensing device can be provided.

Further, since the driving means and the rotary wheel are integrated, there is an advantage that the assembling operation can be performed very easily without requiring any skill. Furthermore, by using a planetary gear mechanism for the reduction mechanism,
Although the size is small, a large reduction ratio can be obtained, so that the load on the drive source can be reduced, and as a result, the life of the drive source can be extended.

[Brief description of the drawings]

FIG. 1 is a plan view showing a preferred embodiment of a bulk dispenser of the present invention.

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a front view showing a structure in which a driving unit and a rotating wheel are integrated.

FIG. 4 is a side view showing an example of a planetary gear mechanism of the speed reduction mechanism used in the bulk material discharging device shown in FIG.

FIG. 5 is a side view in which a part of a ship to which the bulk material discharging device is applied is cut.

6 is a front view showing a structure in which a driving means and a rotating wheel of the ship bulk dispenser shown in FIG. 5 are integrated.

FIG. 7 is a plan view of a conventional bulk material dispensing apparatus.

[Explanation of symbols]

1: loading tank, 5: rotating wheel, 6: driving means, 8: bulk material, 17: driving source, 13: reduction mechanism

Claims (3)

[Claims] 1. A load storage tank for bulk materials, and a drive means rotatably supported on a lower end of a rotary wheel disposed along a bottom wall of the load storage tank, and the drive means is capable of reciprocating to load. In a bulk discharging device for discharging bulk materials loaded in a storage tank from a long discharging port formed in the bottom wall, a speed reduction mechanism provided in the driving means includes a planetary gear mechanism. A bulk dispenser. 2. The loose object according to claim 1, wherein said drive means has a drive source for driving said speed reduction mechanism, and said drive source, said speed reduction mechanism and said rotary wheel are directly connected. Dispensing device. 3. The bulk delivery according to claim 2, wherein the drive source includes a hydraulic motor connected to a speed reduction mechanism, a hydraulic pump driving the hydraulic motor, and an electric motor driving the hydraulic motor. apparatus.