JP4719511B2 - Device for collecting roses leaking from the table feeder - Google Patents

Description

  The present invention relates to a collection device for loose articles leaking from a table feeder.

  A continuous unloader 1 shown in FIG. 5 is known as a cargo handling device for loose objects such as coal and iron ore. The continuous unloader 1 is supported by a top frame 3 attached to the tip of the boom 2 so as to be able to turn around a vertical turning axis A, and scrapes the loose objects 5 in the hold 4 and conveys them upward. It has a table feeder 10x that receives the loose article 5 unloaded from the bucket 8 inverted by the inverted sprocket 7 at the top of the bucket elevator 6 and supplies it to the boom conveyor 9.

  As shown in FIG. 6, the table feeder 10 x includes a turntable 11 that is rotated around the pivot axis A with respect to the bucket elevator 6, and a side that is separated from the rotation of the turntable 11 and is supported on the top frame 3 side. And a cover 12. The turntable 11 includes a bottom plate 11a formed in a donut plate shape so as to surround the bucket elevator 6, and a cylindrical side wall 11b formed to extend upward from the inner peripheral end of the upper surface of the bottom plate 11a. The support mechanism is not supported by the elevator casing 6a of the bucket elevator 6 so as to be rotatable about the pivot axis A. And the gear 13 provided in the lower surface of the baseplate 11a is meshed | engaged with the pinion 16 of the motor 15 attached to the elevator casing 6a via the bracket 14. As shown in FIG. On the other hand, the side cover 12 is supported by the top frame 3 shown in FIG. 5, and the rotation of the turntable 11 and the turning of the bucket elevator 6 are separated.

  The elevator casing 6a is provided with an inlet chute 17 into which the loose object 5 unloaded from the bucket 8 reversed by the reversing sprocket 7 is charged. As a result, when the bucket elevator 6 is swung around the pivot axis A with respect to the top frame 3 during the scraping work of the loose objects 5 in the hold 4, the inlet chute 17 and the elevator casing 6a pivot integrally. The position of the inlet chute 17 changes in the circumferential direction of the turntable 11. Here, the inlet chute 17 is coupled to the upper end of the turntable 11 and the side cover 12 with the lid member 18 disposed so as to be rotatable around the turning axis A, so that the lid member 18 is connected to the turntable 11 and the side cover. By making sliding contact with the upper end of 12, it is possible to cope with the change in the position.

  The loose article 5 guided to the turntable 11 from the inlet chute 17 is conveyed in the circumferential direction of the turntable 11 by rotating the turntable 11 around the turning axis A with respect to the elevator casing 6a, and is not illustrated. It is transferred to the boom conveyor 9 (see FIG. 5) via the exit chute. At this time, although a seal 19 is provided in the gap between the lower end portion of the side cover 12 that is the fixed side and the bottom plate 11a of the turntable 11 that is the rotation side, the leak 19 is prevented from leaking. In reality, it is impossible to make zero, and it is inevitable that some loose objects 5 leak from the seal 19.

  For this reason, in order to collect the loose article 5 (falling steel, falling charcoal, etc.) leaked from the seal 19, the present applicant leaks from the seal 19 to the side cover 12 on the fixed side as shown in FIG. A rose collection basket 21 for receiving the rose is attached via a case-shaped intermediate member 20, and a scraper plate 22 arranged to fit into the collection basket 21 is attached to the turntable 11 on the rotating side, The scraper plate 22 is moved in the circumferential direction of the collection basket 21 by using the rotational force of the turntable 11 with respect to the cover 12, the loose objects 5 in the collection basket 21 are scraped and dropped into a chute (not shown), and transferred to the boom conveyor 9. I created something that I wanted to do.

  In addition, what was described in patent document 1 as a table feeder is known.

Japanese Patent No. 3089839

  However, when the rotational force of the turntable 11 is used, the size of the recovery rod 21 is structurally limited, the scraper plate 22 becomes smaller, and the loose objects 5 leaking from the seal 19 increase. 11 may stop rotating.

  That is, the maximum driving force of the turntable 11 by the motor 15 is not so large because it is set according to the load when the loose article 5 on the turntable 11 is transferred in the circumferential direction, and the recovery basket 21 and scraper If clogging occurs due to the biting of loose objects, the load becomes greater than the driving force and the turntable 11 may not be able to rotate.

  Once rotation of the turntable 11 is stopped due to clogging, it takes time to restore the turntable, and during that time, cargo handling must be stopped. As a countermeasure, it is conceivable to separately prepare a dedicated motor for moving the scraper plate 22 in the circumferential direction with respect to the recovery rod 21, but this leads to a complicated structure and an increase in cost.

  Accordingly, an object of the present invention is to provide a rose that has leaked from a table feeder without adding a new device, that is, with a simple structure and at a low cost, which prevents the turntable from being unable to rotate due to clogging in the recovery device. It is in providing a recovery device.

In order to achieve the above object, the present invention provides a bucket elevator that is turned around a vertical turning axis by a driving means with respect to a frame, a table feeder that receives loose objects from the bucket elevator, and supplies it to a predetermined location. A load receiving member that is disposed below the feeder and receives loose objects leaking from the table feeder; and a scraping plate that is brought into contact with the upper surface of the load receiving member and scrapes the loose objects on the load receiving member to the collection unit; the provided, the load receiving member is attached to the frame, the scraping plate attached to the bucket elevator by utilizing the rotation drive force of the bucket elevator for the frame by the drive means, the load-receiving member the scraper It is made to move with respect to.

  According to the recovery device for loose matter leaked from the table feeder according to the present invention, a new device is not added, that is, the structure is simplified and the turntable cannot be rotated due to clogging in the recovery device at low cost. be able to.

  Preferred embodiments of the present invention will be described with reference to the accompanying drawings.

  The collection device for loose objects leaking from the table feeder according to the present embodiment is provided in the continuous unloader 1 shown in FIG. As shown in FIG. 1, a bucket elevator 6 is mounted on the top frame 3 (the frame of claim 1) so as to be able to turn around a vertical turning axis A via a support mechanism 23. Between the frame 3, first drive means 24 (drive means of claim 1) for turning the bucket elevator 6 about the turning axis A with respect to the top frame 3 is provided.

  The first driving means 24 is attached to the bracket 14 on the first external gear 24a mounted on the top frame 3 on the fixed side and formed concentrically with the pivot axis A, on the elevator casing 6a of the bucket elevator 6 on the rotating side. And a first pinion 24c that is attached to the rotating shaft of the first motor 24b and meshes with the first external gear 24a. When the first motor 24b is driven, the first pinion 24c rolls in the circumferential direction of the first external gear 24a, and the elevator casing 6a turns around the turning axis A with respect to the top frame 3.

  Around the upper part of the bucket elevator 6, a loose object 5 (coal, iron ore, grain, etc.) unloaded from the bucket 8 inverted by the reverse sprocket 7 at the top of the bucket elevator 6 is received, and this is received by the boom conveyor 9. A table feeder 10 is provided for supplying to the table. As shown in FIG. 2, the table feeder 10 also has a turntable 11 that is supported by the elevator casing 6 a so as to be rotatable around the turning axis A via a support mechanism (not shown), and rotates the turntable 11 around the turning axis A. The second drive means 25 to be turned off, and the cylindrical side cover 12 separated from the rotation of the turntable 11 and supported on the top frame 3 side.

  The turntable 11 includes a bottom plate 11a formed in a donut plate shape so as to surround the bucket elevator 6, and a cylindrical side wall 11b formed to extend upward from the inner peripheral end of the upper surface of the bottom plate 11a. The second drive means 25 includes a second external gear 25a mounted on the lower surface of the bottom plate 11a and formed concentrically with the pivot axis A, and a second motor 25b mounted on the bracket 14 mounted on the elevator casing 6a. And a second pinion 25c that is attached to the rotation shaft of the second motor 25b and meshes with the second external gear 25a. In FIG. 1, the brackets 14 and 14a are the same component, but the phase may be shifted in the circumferential direction as is apparent from FIG. When the second motor 25b is driven, the second external gear 25a rotates about the turning axis A with respect to the elevator casing 6a, and the turntable 11 rotates about the turning axis A with respect to the elevator casing 6a.

  The elevator casing 6a is provided with an inlet chute 17 into which the loose object 5 unloaded from the bucket 8 reversed by the reversing sprocket 7 is charged. When the elevator casing 6a is swung around the swing axis A with respect to the top frame 3 by the first motor 24b during the scraping work of the loose objects 5 in the hold 4, the inlet chute 17 swivels integrally and the inlet chute The position 17 changes in the circumferential direction of the turntable 11. Here, since the inlet chute 17 is connected to the lid member 18 that is disposed on the upper ends of the turntable 11 and the side cover 12 so as to be rotatable around the turning axis A, the lid member 18 is connected to the turntable 11 and the side cover 12. It is possible to cope with the change of the position by sliding contact with the upper end of.

  The rose 5 thrown into the inlet chute 17 is placed on the upper surface of the bottom plate 11 a of the turntable 11, is conveyed in the circumferential direction by the turntable 11 being rotated by the second motor 25 b, and is discharged by the scraper 26. 27 (a predetermined portion of claim 1). That is, the outlet chute 27 is provided on the fixed top frame 3 separately from the rotation of the turntable 11, and the scraper 26 is mounted on the upper casing 27a of the outlet chute 27. 11, the scraper 26 guides the loose objects on the turntable 11 to the outlet chute 27. The exit chute 27 guides the loose article 5 to the boom conveyor 9.

  The upper cover 27a of the outlet chute 27 covers a portion connecting the doughnut-shaped space surrounded by the bottom plate 11a, the side wall 11b, the side cover 12, and the lid member 18 of the turntable 11 and the outlet chute 27, and The dust of the loose article 5 in the space and the outlet chute 27 is prevented from diffusing to the outside. For the same reason, a cover 9a is provided above the boom conveyor 9 along the conveying direction.

  By the way, the table feeder 10 is composed of a turntable 11 that is rotated relative to the elevator casing 6a, that is, that is also rotated relative to the top frame 3, and a side cover 12 that is fixed to the top frame 3 side. A predetermined gap for allowing relative rotation is set between the lower end portion of the side cover 12 on the fixed side and the upper surface of the bottom plate 11a of the turntable 11 on the rotating side. In order to prevent the loose article 5 from leaking from the gap, a seal 19 is provided along the circumferential direction at the lower end of the side cover 12. However, it is practically impossible to make the leakage zero, and it is inevitable that some loose objects 5 leak from the seal 19. Therefore, in order to collect the loose article 5 leaking from the seal 19, a recovery device described below is provided.

  As shown in FIGS. 1 and 3, the collection device is disposed below the turntable 11, and receives a load receiving member 28 for receiving the loose article 5 leaking from the seal 19 and an upper surface of the load receiving member 28. A scraping plate 30 is provided in contact with and scrapes the loose article 5 on the load receiving member 28 to the collecting unit 29.

  Specifically, the load receiving member 28 is composed of a ring-shaped housing 28a (ring housing) formed concentrically with the pivot axis A of the bucket elevator 6, and is attached to the top frame 3 on the fixed side via a fence 31 and the like. Attached. On the other hand, the scraper plate 30 is disposed so as to engage with a part of the ring housing 28a in the circumferential direction, and is attached to the elevator casing 6a on the rotating side via a bracket 31. Thereby, when the elevator casing 6a is turned around the turning axis A with respect to the top frame 3 by the first motor 24a, the scraper plate 30 is moved in the circumferential direction in a state of being engaged with the ring housing 28a. The rose 5 in the housing 28a is scraped to the collection unit 29. In FIG. 1, the brackets 31, 14, and 14 a are the same component, but the phase may be shifted in the circumferential direction as is apparent from FIGS. 2 and 3.

  As shown in FIG. 3, the collection unit 29 is formed by a lack of a part in the circumferential direction of the ring housing 28 a, and the rose 5 raked by the scraper 30 is removed from the collection unit 29. It will fall down. Below the collection unit 29, a collection basket 32 is arranged as shown in FIGS. The collection basket 32 is attached to the lower surface of the ring housing 28a so as to be inclined radially outward via a bracket 33, and moves the loose article 5 radially outward and downward to the boom conveyor 9. It is.

  As shown in FIG. 1, the inner surface of the fence 31 is formed along the circumferential direction of the turntable 11 in order to guide the rose 5 leaking from the seal 19 to the ring housing 28 a. A guide plate 34 is mounted.

  The operation of this embodiment will be described.

  The loose article 5 unloaded from the bucket 8 reversed by the reversing sprocket 7 of the bucket elevator 6 is transferred to the turntable 11 of the table feeder 10 via the inlet chute 17 shown in FIG. The motor 25b is rotated around the pivot axis A with respect to the elevator casing 6a by the motor 25b and is transferred in the circumferential direction. The scraper 26 guides the outlet chute 27 to the boom conveyor 9. The rotation of the turntable 11 is always performed during the scraping work of the loose objects 5 in the hold 4 by the bucket conveyor 6.

  During the rotation of the turntable 11, the loose article 5 leaking from the turntable 11 and the side cover 12 and the seal 19 provided in the gap is guided by the guide plate 34 and caught by the ring housing 28a disposed below the guide plate 34. The The loose article 5 caught by the ring housing 28a is moved around the turning axis A with respect to the top frame 3 by the first motor 24b during the scraping operation of the loose article 5 in the hold 4 by the bucket elevator 6. With appropriate turning, the scraper 30 shown in FIG. 3 scrapes (pushes) in the circumferential direction of the ring housing 28a, falls from the recovery part 29, and passes through the recovery bar 32 shown in FIG. It is transferred to the boom conveyor 9.

  As described above, the scraper 30 is moved in the circumferential direction of the ring housing 28a by using the turning driving force of the elevator casing 6a with respect to the top frame 3 by the first motor 24b, and the loose object caught by the ring housing 28a. Since 5 is scraped in the circumferential direction, the rose 5 in the ring housing 28a can be scraped regardless of the rotation of the turntable 11. In other words, the second motor 25b that drives the turntable 11 is not transmitted with any reaction force when the ring housing 28a and the scraping plate 30 are clogged due to the biting of the loose article 5 or the like. The table 11 does not become unrotatable, and a stable cargo handling operation by the table feeder 10 is achieved.

  By the way, when the ring housing 28a and the scraping plate 30 are clogged, the first motor 24b has a first torque for turning the elevator casing 6a against the scraping resistance against the loose objects 5 in the hold 4. In addition, a second torque is applied to move the scraping plate 30 relative to the clogging with respect to the ring housing 28a. Here, since the first torque can vary greatly depending on the type / situation of the loose article 5 in the hold 4 in the first place, the driving force of the first motor 24b is set with a large allowance for the above variation. In addition, the second torque is much smaller than the first torque and is within the above-mentioned fluctuation range, as is apparent from comparing the size of the table feeder 11 and the bucket elevator 6 that are the rotated objects.

  Therefore, even if the ring housing 28a and the scraping plate 30 are clogged, the first motor 24b can overcome the clogging and move the scraping plate 30 with respect to the ring housing 28a. 6a can be secured. Therefore, a stable scraping operation by the bucket elevator 6 is maintained. That is, even if the first motor 24b turns the bucket elevator 6 and the scraper, and the ring housing 28a and the scraper 30 are clogged, the first motor 24b is overloaded. The rotation never stops. As a result, it is possible to prevent the turntable 10 from being unable to rotate due to clogging in the recovery device without adding a new device, that is, with a simple structure and at a low cost, thereby eliminating the time required for the restoration work.

  Further, as described above, since the first motor 24b has a large margin, even if a large load is generated due to a plurality of loose objects caught between the ring housing 28a and the scraper plate 30, it can be overcome. Therefore, the scraper plate 30 can be swung with respect to the ring housing 28a, so that the size of the ring housing 28a can be made larger than that of the recovery housing 21 shown in FIG. Then, the ring housing 28a is enlarged and its mounting position is lowered to the vicinity of the worker passage 3a of the top frame 3 as shown in FIG. You can easily check the status.

  The turning of the elevator casing 6a during the scraping work of the loose objects 5 in the hold 4 is performed at least once (360 degrees) or more for one hold 4 so Drops are ensured to drop.

  Embodiments of the present invention are not limited to the above types.

  For example, as shown in FIG. 3, the scraper plate 30 may be arranged at a plurality of locations at intervals in the circumferential direction, instead of at one location in the circumferential direction of the ring housing 28a. The same applies to the recovery unit 29. In addition, the recovery rod 32 is attached to the bracket 33 so as to be inclined, and initially, the recovery rod 32 is kept horizontal and tilted after a certain amount of loose objects 5 has accumulated in the recovery rod 32, such as at the end of the work of one hold 4. You may do it.

  Moreover, in the said embodiment, although the ring housing 28a was attached to the top frame 3 which is a fixed side, and the scraper board 30 was attached to the elevator frame 6a which is a rotation side, you may reverse the relationship of this attachment position. In this case, as the elevator casing 6 a is turned around the turning axis A relative to the top frame 3, the ring housing 28 a turns around the turning axis A relative to the scraper plate 30.

It is principal part sectional drawing of the continuous unloader provided with the collection | recovery apparatus of the rose which leaked from the table feeder which concerns on suitable embodiment of this invention. It is the II-II sectional view taken on the line of FIG. It is the III-III sectional view taken on the line of FIG. It is the IV-IV sectional view taken on the line of FIG. It is explanatory drawing which shows a continuous unloader. It is principal part sectional drawing of the continuous unloader provided with the collection | recovery apparatus of the rose thing which leaked from the table feeder which the present applicant developed previously.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Continuous unloader 3 Top frame as a frame 5 Discrete thing 6 Bucket elevator 6a Elevator casing 10 Table feeder 11 Turntable 12 Side cover 19 Seal 24 First drive means 27 as drive means 27 Exit chute 28 as predetermined place 28 Load receiving member 28a Load receiving Ring housing as a member 30 Scraper A Rotating shaft

Claims (1)

A bucket elevator that is swiveled around a vertical swivel axis by a driving means with respect to the frame, a table feeder that receives loose objects from the bucket elevator and supplies them to a predetermined location, and is arranged below the table feeder, from the table feeder A load receiving member that receives the leaked loose article, and a scraper that is brought into contact with the upper surface of the load receiving member and scrapes the loose article on the load receiving member to the collection unit,
The load receiving member is attached to the frame, the scraping plate attached to the bucket elevator by utilizing the rotation drive force of the bucket elevator for the frame by the driving means, the scraper relative to the load-receiving member An apparatus for collecting roses leaking from a table feeder, wherein the apparatus is moved.

Images