JP2012171790A - Blending reclaimer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a blending reclaimer that secures high operation efficiency by saving the time and trouble for maintenance.SOLUTION: The blending reclaimer 1 includes: a machine body 2; a bridge 10 extended from the machine body 2 at right angles with respect to a rail 50 and hung horizontally by a hanging structure 4; a carriage 12 provided vertically below the bridge 10 so as to reciprocally move the bridge 10 by lateral driving means; bucket wheels 15, 16 which are mounted on the carriage 12 and rotated by driving means; and a relay conveyor 11 which conveys ores scooped by the bucket wheels 15, 16 to the side of the machine body 2. Driving means of the bucket wheels 15, 16 are coupled to motors 150, 160 through reduction gears 151, 161 on a center axis of rotation. Wheel feeders 152, 162 are provided which are disposed at positions where the relay conveyor 11 passes outer peripheral sides of the bucket wheels 15, 16 and which transfer the scooped ores to the relay conveyor 11.

Description

  The present invention relates to a blending reclaimer for uniformly mixing and discharging ores stacked in a yard of a storage yard.

  As a device for dispensing ore piled up in a storage yard by a loading means such as a stacker while being uniformly mixed, it is described in, for example, Japanese Patent Publication No. 63-15211 and Japanese Patent Application Laid-Open No. 2004-26461, A blending reclaimer 1B configured as shown in FIG. 3 is well known.

  The blending reclaimer 1B includes a body 3 that travels on rails 50, 50, a bridge 14 that extends from the body 3 in a direction perpendicular to the rails 50, and that can be lifted and swung on the tip side. A carriage 13 that is suspended below the bridge 14 and traverses in the longitudinal direction thereof, bucket wheels 18 and 19 that are mounted on both ends of the carriage 13 and are rotated by motors 180 and 190, and bucket wheels 18 and 19 A relay conveyor 17 for transporting the taken ore to the airframe 3 is provided, enabling efficient mixing and dispensing of the ore in a wide yard.

  In this blending reclaimer 1B, since the relay conveyor 17 passes through the rotation center of the bucket wheels 18, 19, a method of supporting the inner peripheral side of the bucket wheels 18, 19 with a plurality of wheels is adopted. In addition, the rotational driving force of the motors 180 and 190 is transmitted by the chains 181 and 191 so that the bucket wheels 18 and 19 are rotationally driven.

  Therefore, in addition to requiring adjustment of the chains 181 and 191 and adjustment of the center by the wheels every relatively short period, the relay conveyor 17 passes through the rotation center of the bucket wheels 18 and 19, so that each adjustment work is troublesome. In addition, the maintenance work of the relay conveyor 17 itself and the carriage 13 is not easy, which is a cause of a decrease in operation efficiency.

  The bridge 14 is formed in a triangular cross-sectional shape, and the suspension structure 5 that supports the bridge 14 from above is a system in which both ends are suspended while having weights 50 on the opposite side, and at the time of work. In order to secure the wheel pressure and reduce the driving force at the time of undulation, a traverse balance carriage is provided inside, and a winch wire rope system is adopted as the traverse driving means of the carriage 13. Therefore, in addition to the large amount of deflection at the center of the bridge 14 making it difficult to perform efficient payout work, there is a traversing balance cart, so extra time is required for changing the yard, and the upper surface of the bridge is soiled with grease of wire rope. Because it was easy, it took time to clean it.

Japanese Examined Patent Publication No. 63-15211 JP 2004-26461 A

  An object of the present invention is to solve the above-described problems, and an object of the present invention is to reduce the time and labor required for maintenance of a blending reclaimer so as to ensure high operational efficiency.

  Accordingly, the present invention provides an airframe capable of reciprocating on a predetermined rail, a bridge extending from the airframe in a direction perpendicular to the rail and horizontally supported by a predetermined suspension structure, and a predetermined portion below the bridge. A carriage vertically suspended by the transverse drive means of the bridge, a bucket wheel mounted on the carriage and rotated by a predetermined drive means, and a bucket wheel provided along the longitudinal direction of the bridge. In the blending reclaimer for uniformly mixing and discharging the ore piled up in the yard of the storage yard, the bucket wheel drive means is The motor is connected via a speed reducer on the center axis of rotation, and the relay conveyor is arranged at a position that passes the outer peripheral side of the bucket wheel. Characterized in that it comprises a conveying means for conveying the ore scooped by the bucket wheel to the relay conveyor.

  That is, in the conventional blending reclaimer, the relay conveyor passes through the rotation center of the bucket wheel, so that the drive means is a system that transmits the power of the motor with a chain and is arranged on the inner peripheral side of the bucket wheel The bucket wheel is pivotally supported by a plurality of wheels. Excessive labor and time are required for various maintenances. In the present invention, the relay conveyor is arranged so as to pass through the outer peripheral side of the bucket wheel. Thus, as a configuration in which the motor is directly driven on the central axis of the bucket wheel via a speed reducer, the labor and time required for maintenance can be greatly reduced.

  Further, if the speed reducer is based on a planetary gear mechanism provided coaxially and integrally with the motor on the motor output shaft side, the motor drive shaft and the central axis are connected so that the speed reducer and the motor are integrated. In addition to the increase in performance, the bucket wheel is directly driven to rotate, so that the drive mechanism portion becomes almost maintenance-free, and it becomes easier to ensure work efficiency.

  Furthermore, in the above-described blending reclaimer, the suspension structure of the bridge is a multipoint suspension type suspension bridge structure. Adoption of the bridge reduces the amount of flexure at the center of the bridge while reducing the weight of the bridge, thereby increasing the degree of freedom of carriage weight and eliminating the use of a transverse balance carriage, shortening the time required for changing the yard. As a result, further improvement in work efficiency can be expected.

  Furthermore, in the above-described blending reclaimer, the transverse drive means of the carriage is a pin rack comprising a pin rack provided in a ladder shape in the longitudinal direction on the bridge side and a motor-driven gear provided on the carriage side and meshing with the pin rack. If it is characterized by being a drive system, there will be no worry of soiling the upper surface of the bridge with grease of the wire rope as in the conventional example equipped with the traverse drive means by the winch wire rope system, and The maintenance of the traversing drive means itself is also easy.

  According to the present invention in which the relay conveyor is arranged on the outer peripheral side of the bucket wheel and is driven to rotate by the motor arranged on the central axis of the bucket wheel, it is possible to reduce the time and labor required for maintenance and ensure high operation efficiency. Is.

It is a front view of the blending reclaimer of embodiment in this invention. (A) is a partial plan view for explaining the configuration centered on the bridge of the blending reclaimer of FIG. 1, and (B) is an enlarged partial plane for explaining the configuration centered on the bucket wheel in (A). The figure and (C) are the expanded partial longitudinal cross-sectional views at the time of cut | disconnecting by the vertical surface which follows a rail in the bucket wheel vicinity of (A). It is a front view which shows a prior art example.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

  FIG. 1 shows a front view of a blending reclaimer 1A of the present embodiment. This blending reclaimer 1A, like the conventional blending reclaimer 1B described above, is for uniformly mixing and discharging the ore piled up in the yard of the storage yard, and traveling back and forth on rails 50 and 50. A possible airframe 2 and a bridge 10 that is suspended from the airframe 2 at a right angle to the rails 50 and 50 and is suspended horizontally (parallel to the yard surface) by a suspension structure 4 that supports a weight 40 on the opposite side. It has.

  In addition, the bridge 10 is provided such that the distal end side can be lifted and swung around a base end side of the upper portion of the body 2 by a predetermined driving means. A carriage 12 is suspended below the bridge 10 so as to be reciprocally movable in the longitudinal direction of the bridge 10 by a transverse drive means. Motor-driven bucket wheels 15 and 16 are provided at both ends of the carriage 10. Is listed. Further, a relay conveyor 11 is provided along the longitudinal direction of the bridge 10, and the ore sown by the bucket wheels 15 and 16 is transported to the machine body 2 side. The above configuration is a well-known configuration common to the conventional examples.

  FIG. 2 (A) is a partial plan view of the blending reclaimer 1A as viewed from above centering on the bridge 10 portion, and FIG. 2 (B) is an enlarged portion for explaining the detailed configuration of the bucket wheel 15. Although it is a plan view, in the present invention, the drive means of the bucket wheels 15 and 16 is formed by connecting the motors 150 and 160 via the speed reducers 151 and 161 on the center axis of the rotation. It is characterized in that the conveyor 11 is disposed through the outer peripheral side of the bucket wheels 15 and 16.

  In other words, in the conventional example shown in FIG. 3, the relay conveyor 17 passes through the rotation centers of the bucket wheels 18 and 19, so that the rotational driving force of the motors 180 and 190 is transmitted via the chains 181 and 191. And the inner periphery of the bucket wheels 18 and 19 are supported by a plurality of wheels. Therefore, wheel center adjustment and chain adjustment are required for a relatively short period of time. It took a lot of time and effort. Further, since the relay conveyor 17 passes through the bucket wheels 18 and 19 and the carriage 13, the maintenance of the relay conveyor 17 and the carriage 13 itself takes time and effort.

  Therefore, in the present invention, the relay conveyor 11 is disposed so as to be shifted in the centrifugal direction of the bucket wheels 15 and 16 so as to pass the outer peripheral side of the bucket wheels 15 and 16, and the ore squeezed with these is separated in the centrifugal direction. Conveyor type foil feeders 152 and 162 were added as conveying means to be conveyed to the relay conveyor 11 as shown in FIGS. Further, as drive means for the bucket wheels 15 and 16, speed reducers 151 and 161 using planetary gear mechanisms are provided coaxially and integrally on the output shaft side of the motors 150 and 160, respectively, and the axis of rotation center of the bucket wheels 15 and 16 is provided. The rotary drive shafts are arranged so as to coincide with each other.

As a result, the maintenance of the relay conveyor 11 and the carriage 12 is facilitated, and the motors 150 and 160 are directly connected to the centers of the bucket wheels 15 and 16 via the speed reducers 151 and 161 using planetary gear mechanisms. The connecting parts of the machines 151 and 161 and the motors 150 and 160 are highly integrated, and there is no need for a chain that tends to sag or a wheel that tends to wear out and the shaft is easily displaced, reducing the frequency of maintenance significantly. At the same time, the maintenance work itself becomes easy.

  Further, in the present embodiment, as shown in FIG. 1, the suspension structure 4 of the bridge 10 has a frame 4b extending laterally from a weight 40 at the tip of an arm 4a extending from the upper part of the body 2, and from the tip of the frame 4b. In addition to the suspension support at the two ends on both ends by the branched frame 4c and the frame 4d, a multipoint suspension type suspension bridge structure is provided by frames 4e and 4f that are arranged between them and support the intermediate portion of the bridge 10. Characterized by dots.

  As a result, the central portion of the bridge 10 is suspended at multiple points and is less likely to bend than the bridge 14 in the conventional example, and the payout by the bucket foils 15 and 16 is easily performed efficiently due to less bending. Therefore, the bridge 10 can be measured, and the degree of freedom of weight distribution to the carriage 12 is increased accordingly. Therefore, in the present embodiment, the transverse balance carriage used in the conventional example is not necessary. It is abolished. Therefore, extra labor and time are not required when changing yards.

  Further, in connection with the elimination of the balance carriage of the bridge 10, the transverse drive means of the carriage 12 in this embodiment includes a longitudinal direction of the bridge 10 as shown in the longitudinal sectional view of FIG. A pin rack drive system comprising a pin rack 111 provided in a ladder shape and a gear 121 (pinion) provided on the carriage 12 side and rotated by a motor 120 engaged with the pin rack 111 is employed.

  As a result, unlike the conventional example equipped with a winch wire rope type traversing drive means, there is no need to worry about soiling the upper surface of the bridge 14 with wire rope grease, and it is necessary to apply grease regularly. The maintenance of the traverse drive means itself is extremely easy as compared with the winch / wire rope system which is easily loosened or broken.

  As described above, regarding the blending reclaimer, the time and labor required for maintenance can be greatly reduced by the present invention. In addition, this has ensured high operational efficiency.

  1A Blending Reclaimer, 2 Airframes, 4 Suspension Support Structure, 10 Bridge, 11 Relay Conveyor, 12 Carriage, 15, 16 Bucket Wheel, 50 Rail, 111 Pin Rack, 120, 150, 160 Motor, 121 Gear, 151, 161 Reducer , 152, 162 Wheel feeder

Claims (4)

  A machine body capable of reciprocating on a predetermined rail, a bridge extending from the machine body in a direction perpendicular to the rail and horizontally supported by a predetermined suspension structure, and a predetermined traverse driving means below the bridge A carriage vertically suspended in the longitudinal direction of the bridge, a bucket wheel mounted on the carriage and rotated by a predetermined driving means, and an ore that is provided along the longitudinal direction of the bridge and is crammed by the bucket foil In a blending reclaimer for uniformly mixing and discharging the ore piled up in the yard of the storage yard, wherein the bucket wheel drive means includes the bucket wheel A motor is connected via a speed reducer on the central axis of rotation, and the relay conveyor is connected to the outer peripheral side of the bucket wheel. That is disposed at a position, and a conveying means for conveying the ore scooped by the bucket wheel to the relay conveyor, blending reclaimer, characterized in that.   The blending reclaimer according to claim 1, wherein the speed reducer is a planetary gear mechanism provided coaxially and integrally with the motor on the motor output shaft side.   The blending reclaimer according to claim 1 or 2, wherein the suspension support structure is a multi-point suspension type suspension bridge structure, and does not include a transverse balance carriage. The traversing drive means is a pin rack drive system comprising a pin rack provided in a ladder shape in the longitudinal direction on the bridge side and a motor-driven gear provided on the carriage side and meshing with the pin rack. 4. A blending reclaimer according to claim 1, 2 or 3.

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