JP2716666B2 - Storage type paddle feeder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage type paddle feeder for cutting out and transferring powder and granular material below a hopper for storing powder and granular material such as coal. In addition,
“Paddle” also means “plow”, and “paddle feeder” means a configuration having a function of cutting out and transferring powders and granules onto a conveyor belt, and also includes those that do not necessarily include “paddles”.

[0002]

2. Description of the Related Art Conventionally, for example, in a coal storage silo, a rotary paddle is used to store coal separately for each type of coal and to discharge a plurality of types of coal onto the same conveyor to perform coal mixing. A feeder is provided.
A typical prior art is disclosed in Japanese Utility Model Publication No. 37-1024. In such single-sided prior art,
A conveying conveyor is provided at the bottom of the hopper, and coal deposited at a natural angle of repose is scraped off with a paddle on a horizontal shelf at the bottom of the hopper, and cut out and transferred onto a conveyor belt. The cutting paddles, also referred to as plows, can be radially combined to form a swivel wheel to unload coal deposited on one side of the conveyor.

[0003] Japanese Patent Publication No. 43-11126 discloses that a coal can be moved in a conveying direction or a vertical direction thereof on a track provided along a conveying conveyor, and a wheel having a cut-off angle is provided at an arbitrary position in a coal storage facility. Swirl into the pile during the accumulation,
A single swivel type configuration capable of performing a cutting operation on a transport conveyor is disclosed. When moving on a track in the transport direction, the cutting wheel can be retracted away from the pile and moved to any cutting place at high speed so that the cutting wheel does not catch the coal.

Further, Japanese Patent Application Laid-Open No. 61-267615 discloses a double-cut type configuration in which coal and the like can be cut simultaneously on both sides in the transport direction by turning a cutting wheel. Further, in a configuration known as a double swivel type, it is possible to travel on a track along a conveyor and move to an arbitrary location such as a coal storage facility,
There is disclosed a configuration in which a cutting wheel turns and enters one or the other of the cutouts, cuts in, and can move in a transport direction at a high speed at a center neutral position.

[0005]

For example, when coal is mixed, it is necessary to cut out raw materials from a plurality of hoppers on the same conveyor, and in general, one conveyor is installed through a plurality of hoppers. ing. The dispensing device is
It is necessary to be able to travel quickly along the conveyor, stop at a required position and quickly pay out.
In a configuration, such as Japanese Utility Model Publication No. 37-1024, in which a turning wheel for cutting cannot be evacuated from the deposited coal or the like at the time of movement, undesired extra cutting is performed and the movement is performed quickly. It is not possible. 43-1
In the case of a single swivel type as disclosed in Japanese Patent No. 1126, quick movement is possible when no payout is performed. However, since the single swivel type is a single cut type, the cutting efficiency is low. With a double-cut type configuration as disclosed in Japanese Patent Application Laid-Open No. 61-267615, cutting can be performed efficiently from both sides of the conveyor, so that it can be performed efficiently. It cannot be evacuated. If it is a double swivel type, it can be cut out from both sides of the conveyor, and at the time of movement, the turning wheel is retracted to the neutral position and high-speed movement is possible, but cutting can not be performed on both sides simultaneously, Since each side is provided, the efficiency is low as in the case of the single-cut type.

SUMMARY OF THE INVENTION It is an object of the present invention to be able to simultaneously cut out powder and granular material deposited from both sides of a conveyor, and to move at a high speed in the transport direction without contacting the sediment when moving in the transport direction. The object of the present invention is to provide a storage type paddle feeder capable of performing the following.

[0007]

SUMMARY OF THE INVENTION According to the present invention, a granular material is cut and transported by a swiveling paddle from below the stacked state, the movable material being movable along a transport conveyor below a hopper for storing the granular material. In a paddle feeder for supplying on a conveyor, a paddle for cutting out powdery and granular materials can be switched between a state in which the paddle is projected on both sides in the width direction of the transport conveyor and a state in which the paddle is stored above the transport conveyor. Switching means for projecting and storing the paddles during traveling movement, wherein the base ends of the plurality of paddles are connected to the turning frame that is pivotally supported at intervals in the circumferential direction and the base end of each paddle. Planetary gears, a driving gear disposed on the center axis of the turning frame and meshing with each planetary gear at the same time, a turning motor for turning the driving gears, and a braking device for damping turning displacement of the turning frame. A housing paddle feeder, characterized in that it comprises a switching means comprising a. Further, the present invention provides a paddle feeder which is capable of traveling along a transport conveyor below a hopper storing powders and granules, and cuts out the powders from a lower portion in a stacked state by a rotating screw and supplies the powders onto the transport conveyor. The screw that cuts out the powder and granules has two rotating shafts having a length exceeding the width of the conveyor, and constitutes a pair of double cutting screws. The rotating shafts of the screws are conveyed by the conveyor. The center pivot axis is used for the protruding state in which the screws protrude to both sides in the width direction by intersecting with the direction, and the storage state in which the screw is stored above the transport conveyor with the rotating shaft facing the transport direction of the transport conveyor. A stowable paddle feeder comprising switching means for turning around and switching the center.

[0008]

According to the present invention, the switching means causes the paddle to protrude to both sides in the width direction of the transport conveyor when cutting out, and switches so that the paddle is stored above the transport conveyor when traveling. When the paddle is turned while protruding from both sides in the width direction of the conveyor, the powder and granules stored on both sides of the conveyor can be simultaneously cut out and transferred onto the conveyor. In addition to the efficient cutting from both sides, the paddle is stored above the transport conveyor during traveling movement, so that the paddle can be moved at high speed along the transport conveyor without contacting the stored granules.

When the driving gear is rotated by the turning motor, a plurality of planetary gears meshing with the driving gear are simultaneously rotated, and the base end of the paddle to which each planetary gear is connected is angularly displaced. Thus, it is possible to easily switch between a state in which the tip end side of the paddle projects outward in the radial direction and a state in which the paddle is stored in the turning direction. The turning frame, in which the base ends of the paddles are pivotally supported at intervals in the circumferential direction, can be used to brake the turning displacement by a braking device. Can be switched.

[0010]

Further, according to the present invention, at the time of cutting, the switching means projects a pair of double screws on both sides of the transport conveyor so that the cutting can be performed simultaneously from both sides. At the time of traveling movement, the switching means causes the screw to be housed on the transport conveyor with the rotating shaft of the screw directed in the transport direction of the transport conveyor, so that high-speed movement is possible. Since the projecting and storing of the screw is performed by turning around the central turning axis, both ends of the rotating shaft of the screw can be used for cutting out.

[0012]

1 is a front sectional view of a first embodiment of the present invention.
2 (A) and 2 (B) are cross-sectional views as viewed from cutting plane lines AA and BB in FIG. 1. FIG. 3 is a cross-sectional view as viewed from cutting plane line BB in FIG. Viewed sectional view, FIG.
1 shows side views of the cutting device according to the embodiment of FIG. The cutting device 1 according to the present embodiment can travel and move below a housing 3 provided at the bottom of a hopper 2 that stores coal and other granular materials in a direction perpendicular to the paper surface. The bottom of the hopper 2 forms a horizontal shelf 4, and the coal 5 stored in the hopper 2 is deposited below the housing 3 while forming a repose angle θ. A belt conveyor 6 is provided below the housing 3, and a cutting paddle 7 of the cutting device 1 scrapes the coal 5 on the shelf 4 and transfers the coal 5 onto the belt conveyor 6. The belt conveyor 6 is a roller 8
Supported by The cutting device 1 is formed using a traveling frame 10 traveling on a rail 9 provided along the belt conveyor 6 as a base.

A drive shaft 11 is provided upright on the traveling frame 10, and a drive gear 12 is connected to an intermediate portion thereof. A plurality of planetary gears 13 are provided around the drive gear 12 so as to mesh simultaneously, and when the drive gear 12 rotates, each planetary gear 13 rotates simultaneously. Each planetary gear 13 is a support shaft 1
4, and the support shaft 14 is supported by the revolving frame 15. Each support shaft 14 is arranged at intervals on the same circumference of the revolving frame 15. The drive shaft 11 is supported from above and below by a lower bearing 16 and an upper bearing 17.
A presser braking device 18 can contact the surface of the revolving frame 15. When the presser brake device 18 presses the turning frame 15, the rotation of the turning frame 15 is braked. If the drive shaft 11 is rotationally driven in this state, the cutting paddle 7
Can be changed to a projected state or a stored state.

The cutting paddle 7 releases the presser braking device 18 from the braking state when excavating and cutting out powdery or granular material such as coal, and as shown in FIGS. 2 (A) and 2 (B).
It is driven to rotate clockwise 2a in the clockwise direction of (A) and (B). When the cutting device 1 moves between a plurality of silos provided along the belt conveyor 6, the cutting device 1 is driven to rotate in the counterclockwise direction 2b to a state shown by a two-dot chain line in FIG. 2B and a solid line in FIG. The cutting paddle 7a is folded and stored. When the cutting paddle 7 is rotated clockwise, it comes into contact with the stopper 19 to stop the gutter-shaped angular displacement. As shown in FIG. 2A, the drive gear 12 rotates clockwise and the planetary gear 13 rotates counterclockwise to open the cut-out paddle 7.
When the cut-out paddle 7 is stored, the drive gear 12 rotates left and the planetary gear 3 rotates right to store the cut-out paddle 7. The cutting paddle 7 is connected to the drive gear 1 via a drive shaft 11.
2. A driving force is applied to the planetary gear 13 and the support shaft 14 of the cut-out paddle 7. The cutout paddles 7 are arranged in a plurality around the turning frame 15. The drive shaft 11 is rotatably supported by a lower bearing 16 and an upper bearing 17. A holding brake device 18 is provided for holding the cut-out paddle 7 so as not to fly out when moving to store the cut-out paddle 7. When the presser braking device 18 presses the turning frame 15,
Even when various external forces act on the cut-out paddle 7, it can be reliably switched to the maximum projected state and the stored state.

A driving motor 20 is provided as a driving source for driving the cutting device 1 on the rail 9. The turning of the cutting paddle 7 is based on the driving force generated by the turning motor 21. The rotation shaft of the swing motor 21 is connected to a transmission 22, and the rotation direction and the rotation speed are changed to drive the drive shaft 11 to rotate. The final turning speed of the cut-out paddle 7 is, for example, 2 to 10 rpm.

FIG. 5 shows another structure of the mechanism for projecting and storing the cut-out paddle 7 in the first embodiment of the present invention, as viewed from the section line BB in FIG. A link arm 25 is joined to the base end of the cut-out paddle 7. A roller 26 is provided at the tip of the link arm 25. The roller 26 is guided by a spline 27 provided on the revolving frame 15 and can switch between a state in which the curved cutting paddle 7 is projected and a state in which the cutting paddle 7 is folded and stored.

[0017]

[0018]

[0019]

FIG. 6 is a front sectional view of a second embodiment of the present invention,
7A and 7B are cross-sectional views taken along the line AA and BB of FIG. 6, and FIG. 8 is a side view of FIG. In this embodiment, parts corresponding to those in the first embodiment are denoted by the same reference numerals. It should be noted that the cutting device 41 according to the present embodiment is a screw feeder in that it has a pair of dual cutting screws 42a and 42b, but is capable of being angularly displaced about its turning shaft 43. This is to operate as a retractable paddle feeder. This angular displacement is performed by the turning motor 44. Swing motor 44
A pinion gear 45 is connected to the output shaft of the motor. The pinion gear 45 meshes with the ring gear 46, and can switch between a direction perpendicular to the transport direction as shown by a solid line in FIG. 7B and a storage state shown by a two-dot chain line in FIG. 7B. The rotation of the cutting screws 42a and 42b causes the transmission shaft 50 to rotate via a bevel gear 49 meshed with a bevel gear 48 coupled to the output shaft of the drive motor 47, and the gears 51 and 52
, The cutting screws 42a and 42b are driven to rotate.

When the coal 5 is cut from the hopper 2, the cutting screws 42a and 42b are positioned in the direction indicated by the solid line in FIG. 7B. Cutting screws 42a, 42
When b is driven to rotate, the cut coal 5 is scraped out to the center and collected on the belt conveyor 6. At the time of movement between the hoppers 2, the cutting screws 42a and 42b are angularly displaced and stored in the conveying direction of the belt conveyor 6. The rotation of the cutting screws 42a and 42b is connected by the traveling frame 10 and the ring gear 46. The ring gear 46 is driven to rotate by a pinion gear 45 of a turning motor 44 provided in the turning frame 15. The cutting screws 42a and 42b transmit the driving force by bevel gears 48 and 49 provided in the driving motor 47. The secondary-side bevel gear 49 is fixed to the outer periphery of the transmission shaft 50, and transmits a rotational force to a gear 51 coupled to the transmission shaft 50. Gear 51
Are cutout screws 42a, 42b via a gear 52.
Is driven to rotate.

In the first and second embodiments described above,
Although the case where the coal stored in the hopper 2 in the silo is cut out is explained, a certain amount of bulk material such as ore, limestone, earth and sand, and chips is stored in the silo or open as needed. It is similarly possible to continuously pay out from a hopper or the like in the yard.

[0023]

As described above, according to the present invention, at the time of cutting, the revolving paddle projects to both sides of the conveyor and can simultaneously cut out the powdery material from both sides. be able to. During traveling movement, the paddle is stored above the conveyor, and does not come into contact with the accumulated powder, so that high-speed movement can be performed in the transport direction without performing extra cutting. Since it is possible to cut out from both at the same time, efficient cutting can be performed, and also high-speed movement is possible. Mixing can be performed quickly and easily. In addition, since the cutting paddle forms a turning wheel and simultaneously cuts out the powder on both sides of one turning wheel, the load is balanced on both sides and efficient cutting can be performed.

Further, the switching means for switching each paddle between the protruding state and the stowed state can be compactly arranged on the turning wheel, and reliable switching can be performed with a simple configuration.

[0025]

Further, according to the present invention, if both ends of the rotating shafts of the pair of double screws are protruded to both sides of the conveyor, cutting can be performed simultaneously on both sides. When the screw is turned around the center turning axis of the screw and the rotation axis is directed in the transport direction, the paddle feeder can travel at high speed. In addition, the use of the screw can reduce the variation in the cutting amount.

[Brief description of the drawings]

FIG. 1 is a front sectional view of a first embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along line AA and BB of FIG. 1;

FIG. 3 is a plan view showing a storage state of the cut-out paddle of the first embodiment.

FIG. 4 is a side view of the first embodiment.

FIG. 5 is a plan view showing another configuration for accommodating the cut-out paddle of the first embodiment.

FIG. 6 is a front sectional view of a second embodiment of the present invention.

FIG. 7 is a cross-sectional view taken along line AA and BB of FIG. 6;

FIG. 8 is a side view of the second embodiment.

[Explanation of symbols]

 1, 31, 41 Cutting device 2 Hopper 3 Housing 4 Shelf 5 Coal 6 Belt conveyor 7 Cutting paddle 9 Rail 10 Traveling frame 11 Drive shaft 12 Drive gear 13 Planetary gear 14 Support shaft 15 Rotating frame 18 Holding brake device 19 Stopper 20 Traveling motor 21, 44 Swivel motor 25 Link arm 27 Spline 42a, 42b Extraction screw 43 Swivel shaft 48, 49 Bevel gear 50 Conductive shaft 51, 52 Gear

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-61-267615 (JP, A) JP-A-55-70640 (JP, A) JP-A-6-63534 (JP, U)

Claims (2)

(57) [Claims] 1. A paddle feeder which is movable under a hopper for storing powders and granules along a transport conveyor, and which cuts out the powders from below in a stacked state by a revolving paddle and supplies the powders onto the transport conveyor. The paddle for cutting out the powder can be switched between a state in which the paddle is projected on both sides in the width direction of the transport conveyor and a state in which the paddle is stored above the transport conveyor. A swivel frame in which the base ends of a plurality of paddles are pivotally supported at intervals in the circumferential direction; a planetary gear coupled to the base end of each paddle; A switching gear that is disposed on the central axis and meshes simultaneously with each planetary gear; a turning motor that rotates the driving gear; and a braking device that brakes the turning displacement of the turning frame. Storage paddle feeder, wherein Mukoto. 2. A paddle feeder which is movable under a hopper for storing powders and granules along a transport conveyor, and cuts and feeds the powders and granules from below the piled state by a rotating screw and supplies the powders onto the transport conveyor. The screw for cutting out the powder and granules has two rotating shafts having a length exceeding the width of the conveyor, and constitutes a pair of double-shape cutting screws. The rotating shaft of the screw is transferred by the conveyor. The center pivot axis is used for the protruding state in which the screws protrude to both sides in the width direction by intersecting with the direction, and the storage state in which the screw is stored above the transport conveyor with the rotating shaft facing the transport direction of the transport conveyor. A stowable paddle feeder comprising a switching means for switching by turning around a center.