WO2000008912A1 - Apparatus comprising a bin with a vibrator within - Google Patents

Apparatus comprising a bin with a vibrator within Download PDF

Info

Publication number
WO2000008912A1
WO2000008912A1 PCT/IB1999/001426 IB9901426W WO0008912A1 WO 2000008912 A1 WO2000008912 A1 WO 2000008912A1 IB 9901426 W IB9901426 W IB 9901426W WO 0008912 A1 WO0008912 A1 WO 0008912A1
Authority
WO
WIPO (PCT)
Prior art keywords
bin
base structure
vibrator
cross members
rotor
Prior art date
Application number
PCT/IB1999/001426
Other languages
French (fr)
Inventor
Konrad Johan Bartel
Stéan KROUCAMP
Dale John Trevor
George Daniel Bower Hayman
Original Assignee
Rovic International (Proprietary) Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rovic International (Proprietary) Limited filed Critical Rovic International (Proprietary) Limited
Priority to AU51868/99A priority Critical patent/AU5186899A/en
Priority to PCT/IB1999/001426 priority patent/WO2000008912A1/en
Publication of WO2000008912A1 publication Critical patent/WO2000008912A1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C15/00—Fertiliser distributors
    • A01C15/005—Undercarriages, tanks, hoppers, stirrers specially adapted for seeders or fertiliser distributors
    • A01C15/006—Hoppers
    • A01C15/007—Hoppers with agitators in the hopper
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
    • E01C19/20—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders
    • E01C19/201—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders with driven loosening, discharging or spreading parts, e.g. power-driven, drive derived from road-wheels
    • E01C19/2035—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders with driven loosening, discharging or spreading parts, e.g. power-driven, drive derived from road-wheels both rotating parts and reciprocating, oscillating, jolting or vibrating parts
    • E01C19/204—Throwers or centrifugal spreaders, e.g. spinner spreader with oscillating stirrer
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
    • E01C19/20—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders
    • E01C2019/2055—Details not otherwise provided for
    • E01C2019/207—Feeding the distribution means
    • E01C2019/2075—Feeding the distribution means with longitudinal conveyor belt

Definitions

  • This invention relates to apparatus comprising a bin.
  • the invention relates to apparatus of the kind in which the bin is used to hold a flowable solid material for discharge from the bin, and in which, as said material is being discharged from the bin, the material remaining in the bin gravitates towards the bottom of the bin.
  • An agricultural spreader of the type that is used to spread granular fertilizer, lime, or other flowable solid material is an example of such apparatus.
  • apparatus comprising a bin, of the kind in which the bin is used to hold a flowable solid material for discharge from the bin, and in which, as said material is being discharged from the bin, the material remaining in the bin gravitates towards the bottom of the bin, the apparatus including a vibrator which is arranged inside the bin and is mounted on the bin structure via resiliently flexible mountings.
  • the resiliently flexible mountings may be of an elastomeric material such as, for example, rubber or a synthetic elastomeric material.
  • the vibrator may include a base structure, an out-of- balance rotor mounted on the base structure so as to be rotatable about a horizontally extending axis of rotation, and a motor for . rotating the rotor.
  • the rotor may comprise a shaft and an eccentric weight in the form of an elongate bar secured to, and extending along, one side of the shaft.
  • Said base structure may include a plurality of horizontally extending elongate elements, the elongate elements being spaced transversely from one another and extending in a direction generally parallel to said axis of rotation.
  • the elongate elements may be in the form of hollow tubes. They may be in the form of hollow, round section tubes.
  • Said base structure may further include a pair of spaced, transversely extending cross members, the longitudinally extending elements being mounted on, and spanning the distance between, the cross members.
  • Figure 1 is a pictorial view of an agricultural spreader in accordance with the invention
  • Figure 2 is an exploded three-dimensional view of a vibrator
  • reference numeral 10 generally indicates an agricultural spreader comprising a wheeled chassis 12 having a drawbar 14 at the front, a pair of driven spreader rotors 1 6 at the rear of the spreader, and a bin 18 mounted on the chassis via pillars 20.
  • the bin 18 has sloping side walls 22, and front and rear walls 24.1 and 24.2 respectively.
  • the side walls 22 are each reinforced by a longitudinally extending hollow rib 26 and a series of upright hollow gussets 28.
  • the rear wall 24.2 is provided with a vertically adjustable gate 32 whereby the rate of flow of flowable material from the bin to the rotary spreaders can be adjusted.
  • reference numeral 40 generally indicates a vibrator which is mounted inside the bin 18.
  • the vibrator 40 comprises a base structure 41 which includes pair of spaced cross members 42 and a plurality of longitudinally extending elements 44.1 to 44.5 spanning between and joining the cross members.
  • the cross members 42 are each of hollow, square section tubing, whereas the elements 44.1 to 44.5 are each of hollow, round section tubing.
  • the outermost elements 44.1 and 44.2 and the centre element 44.3 extend, at each opposite end thereof, beyond the respective cross members 42, whereas the elements 44.4 and 44.5 terminate at the respective cross members.
  • the base structure 41 further comprises a base plate 46 which spans between the cross members 42, an end wall 48, and a cover 50.
  • the vibrator 40 further comprises an out-of-balance rotor 52 which is arranged in the space between the base plate 46 and the cover 50.
  • the rotor 52 is joumalled in a pair of bearings 54 which are mounted on the base plate 46.
  • the rotor 52 comprises a shaft 56 having an eccentric weight in the form of a longitudinally extending bar 58 secured to one side thereof.
  • one or more additional bars 60 are provided which can be bolted onto the bar 58 by means of bolts 62.
  • the rotor 52 is driven by means of a hydraulic motor 64 which is mounted on the end wall 48, the motor being coupled to the rotor via a rubber coupling 66.
  • the vibrator 40 is mounted on the bin structure by means of four resiliently flexible mountings 68, these being of the type that comprise a rubber block with, at each end of the block, a threaded metal stud.
  • each of the cross members 42 is provided with a pair of angle section mounting brackets 70.
  • the bin structure is provided with corresponding triangularly shaped mounting brackets 72, these being secured to, and forming part of, the bin structure. In the region of the mounting brackets 72 the bin structure is strengthened by means of bolt-on reinforcing plates 74.
  • the hydraulic motor 64 can be driven from the hydraulic system of the tractor or other draught vehicle that is used to tow the spreader. The speed of the hydraulic motor 64 can be adjusted by means of a control valve (not shown). This enables the optimum frequency of vibration to be selected on a trial-and-error basis. The amplitude of the vibration can be varied by adding or removing additional bars 60.
  • the entire vibrator 40 In use, when the bin 18 is full, the entire vibrator 40 will be covered by the flowable solid material in the bin 18. Rotation of the motor 64 will cause the entire base structure 41 to vibrate.
  • the vibration if at an appropriate frequency and amplitude, will have the effect of fluidising (or enhancing the fluidity of) the particulate solid material in the bin, assisting its flow under gravity towards the belt 30.
  • the vibration is initially coupled via the particulate material to the bin structure, and in particular to the side walls 22, as well, so that the entire bin structure is set vibrating.
  • the vibration of the base structure 41 is no longer coupled to the bin structure via the particulate material in the bin.
  • the only coupling now to the bin structure is via the flexible mountings 68.
  • the flexible mountings 68 have the effect of isolating the vibration to a degree from the bin structure, so that vibration of the bin structure when this is no longer required, is minimised.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Soil Working Implements (AREA)

Abstract

An agricultural spreader comprises a wheeled chassis (12) and a bin (18) mounted on the chassis. A vibrator (40) is arranged inside the bin (18) and mounted on the bin structure via resiliently flexible mountings (68). The vibrator has a base structure (41), an out-of-balance rotor (52) mounted on the base structure, and a hydraulic motor (64) for rotating the rotor. The base structure includes a pair of cross members (42) and a plurality of hollow, round section tubes (44.1 ... 44.5) which span the distance between the cross members and, in the case of some of then, extend beyond the corresponding cross members. Vibration of the vibrator is coupled to particulate material in the bin and, when the particulate material in the bin is at a high level, via the particulate material to the bin structure. When the particulate material in the bin is at a low level the resilient mountings to a degree isolate vibration of the base structure from the bin structure.

Description

APPARATUS COMPRISING A BIN WITH A VIBRATOR WITHIN
This invention relates to apparatus comprising a bin.
More particularly, the invention relates to apparatus of the kind in which the bin is used to hold a flowable solid material for discharge from the bin, and in which, as said material is being discharged from the bin, the material remaining in the bin gravitates towards the bottom of the bin. An agricultural spreader of the type that is used to spread granular fertilizer, lime, or other flowable solid material, is an example of such apparatus. According to the invention there is provided apparatus comprising a bin, of the kind in which the bin is used to hold a flowable solid material for discharge from the bin, and in which, as said material is being discharged from the bin, the material remaining in the bin gravitates towards the bottom of the bin, the apparatus including a vibrator which is arranged inside the bin and is mounted on the bin structure via resiliently flexible mountings.
The resiliently flexible mountings may be of an elastomeric material such as, for example, rubber or a synthetic elastomeric material. The vibrator may include a base structure, an out-of- balance rotor mounted on the base structure so as to be rotatable about a horizontally extending axis of rotation, and a motor for . rotating the rotor.
The rotor may comprise a shaft and an eccentric weight in the form of an elongate bar secured to, and extending along, one side of the shaft.
Said base structure may include a plurality of horizontally extending elongate elements, the elongate elements being spaced transversely from one another and extending in a direction generally parallel to said axis of rotation.
The elongate elements may be in the form of hollow tubes. They may be in the form of hollow, round section tubes. Said base structure may further include a pair of spaced, transversely extending cross members, the longitudinally extending elements being mounted on, and spanning the distance between, the cross members.
The ends of at least one of the elongate elements may extend beyond the corresponding cross members. The invention will now be described in more detail, by way of example, with reference to the accompanying drawings. In the drawings: Figure 1 is a pictorial view of an agricultural spreader in accordance with the invention; Figure 2 is an exploded three-dimensional view of a vibrator
(not shown in Figure 1 ) mounted inside the bin of the spreader; Figure 3 is a side view of certain parts of the vibrator; Figure 4 is an end view on IV-IV in Figure 3; Figure 5 is a section on V-V in Figure 3. Referring first to Figure 1 , reference numeral 10 generally indicates an agricultural spreader comprising a wheeled chassis 12 having a drawbar 14 at the front, a pair of driven spreader rotors 1 6 at the rear of the spreader, and a bin 18 mounted on the chassis via pillars 20. The bin 18 has sloping side walls 22, and front and rear walls 24.1 and 24.2 respectively. The side walls 22 are each reinforced by a longitudinally extending hollow rib 26 and a series of upright hollow gussets 28. Underneath the bin 18 there is an endless belt 30 for transporting flowable solid material in the bin towards the spreader rotors 16. The rear wall 24.2 is provided with a vertically adjustable gate 32 whereby the rate of flow of flowable material from the bin to the rotary spreaders can be adjusted.
Referring now also to Figure 2 to 5, reference numeral 40 generally indicates a vibrator which is mounted inside the bin 18. The vibrator 40 comprises a base structure 41 which includes pair of spaced cross members 42 and a plurality of longitudinally extending elements 44.1 to 44.5 spanning between and joining the cross members. The cross members 42 are each of hollow, square section tubing, whereas the elements 44.1 to 44.5 are each of hollow, round section tubing. The outermost elements 44.1 and 44.2 and the centre element 44.3 extend, at each opposite end thereof, beyond the respective cross members 42, whereas the elements 44.4 and 44.5 terminate at the respective cross members. The base structure 41 further comprises a base plate 46 which spans between the cross members 42, an end wall 48, and a cover 50.
The vibrator 40 further comprises an out-of-balance rotor 52 which is arranged in the space between the base plate 46 and the cover 50. The rotor 52 is joumalled in a pair of bearings 54 which are mounted on the base plate 46. The rotor 52 comprises a shaft 56 having an eccentric weight in the form of a longitudinally extending bar 58 secured to one side thereof. In order to adjust the degree of out-of-balance, one or more additional bars 60 are provided which can be bolted onto the bar 58 by means of bolts 62. The rotor 52 is driven by means of a hydraulic motor 64 which is mounted on the end wall 48, the motor being coupled to the rotor via a rubber coupling 66.
The vibrator 40 is mounted on the bin structure by means of four resiliently flexible mountings 68, these being of the type that comprise a rubber block with, at each end of the block, a threaded metal stud. To provide attachment points for the flexible mountings 68, each of the cross members 42 is provided with a pair of angle section mounting brackets 70. Likewise, the bin structure is provided with corresponding triangularly shaped mounting brackets 72, these being secured to, and forming part of, the bin structure. In the region of the mounting brackets 72 the bin structure is strengthened by means of bolt-on reinforcing plates 74. The hydraulic motor 64 can be driven from the hydraulic system of the tractor or other draught vehicle that is used to tow the spreader. The speed of the hydraulic motor 64 can be adjusted by means of a control valve (not shown). This enables the optimum frequency of vibration to be selected on a trial-and-error basis. The amplitude of the vibration can be varied by adding or removing additional bars 60.
In use, when the bin 18 is full, the entire vibrator 40 will be covered by the flowable solid material in the bin 18. Rotation of the motor 64 will cause the entire base structure 41 to vibrate. The base structure, and in particular the protruding ends of the elements 44.1 to 44.3, form coupling horns whereby the vibrator is mechanically coupled to the body of particulate material in the bin. The vibration, if at an appropriate frequency and amplitude, will have the effect of fluidising (or enhancing the fluidity of) the particulate solid material in the bin, assisting its flow under gravity towards the belt 30. The vibration is initially coupled via the particulate material to the bin structure, and in particular to the side walls 22, as well, so that the entire bin structure is set vibrating. This further assists the particulate material in flowing towards the belt 30. Once the level of the particulate material starts falling below the level of the elements 44.1 to 44.5, the vibration of the base structure 41 is no longer coupled to the bin structure via the particulate material in the bin. The only coupling now to the bin structure is via the flexible mountings 68. The flexible mountings 68, however, have the effect of isolating the vibration to a degree from the bin structure, so that vibration of the bin structure when this is no longer required, is minimised.

Claims

CLAIMS:
1 . Apparatus comprising a bin, of the kind in which the bin is used to hold a flowable solid material for discharge from the bin, and in which, as said material is being discharged from the bin, the material remaining in the bin gravitates towards the bottom of the bin, the apparatus including a vibrator which is arranged inside the bin and is mounted on the bin structure via resiliently flexible mountings.
2. Apparatus as claimed in claim 1 , wherein the resiliently flexible mountings are of an elastomeric material.
3. Apparatus as claimed in claim 1 or claim 2, wherein the vibrator includes a base structure, an out-of-balance rotor mounted on the base structure so as to be rotatable about a horizontally extending axis of rotation, and a motor for rotating the rotor.
4. Apparatus as claimed in claim 3, wherein the rotor comprises a shaft and an eccentric weight in the form of an elongate bar secured to, and extending along, one side of the shaft.
5. Apparatus as claimed in claim 3 or claim 4, wherein said base structure includes a plurality of horizontally extending elongate elements, the elongate elements being spaced transversely from one another and extending in a direction generally parallel to said axis of rotation.
6. Apparatus as claimed in claim 5, wherein the elongate elements are in the form of hollow tubes.
7. Apparatus as claimed in claim 6, wherein the elongate elements are in the form of hollow, round section tubes.
8. Apparatus as claim in any one of claims 5 to 7, wherein said base structure further includes a pair of spaced, transversely extending cross members, the longitudinally extending elements being mounted on, and spanning the distance between, the cross members.
9. Apparatus as claimed in claim 8, wherein the ends of at least one of the elongate elements extend beyond the corresponding cross members.
10. Apparatus substantially as herein described and illustrated.
PCT/IB1999/001426 1999-08-12 1999-08-12 Apparatus comprising a bin with a vibrator within WO2000008912A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU51868/99A AU5186899A (en) 1999-08-12 1999-08-12 Apparatus comprising a bin with a vibrator within
PCT/IB1999/001426 WO2000008912A1 (en) 1999-08-12 1999-08-12 Apparatus comprising a bin with a vibrator within

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB1999/001426 WO2000008912A1 (en) 1999-08-12 1999-08-12 Apparatus comprising a bin with a vibrator within

Publications (1)

Publication Number Publication Date
WO2000008912A1 true WO2000008912A1 (en) 2000-02-24

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ID=11004889

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB1999/001426 WO2000008912A1 (en) 1999-08-12 1999-08-12 Apparatus comprising a bin with a vibrator within

Country Status (2)

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AU (1) AU5186899A (en)
WO (1) WO2000008912A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1129608A1 (en) * 2000-03-01 2001-09-05 Lehner Agrar GmbH Spreading device
CN102424214A (en) * 2011-08-31 2012-04-25 中冶南方工程技术有限公司 Anti-blockage raw coal cabin
FR3053896A1 (en) * 2016-07-13 2018-01-19 Exel Industries FLOW DEVICE FOR PRODUCT DISPERSION ASSEMBLY, IN PARTICULAR FOR AGRICULTURAL ENGINE

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1473408A (en) * 1974-12-20 1977-05-11 Hosokawa Micron Kk Apparatus for feeding powdery material
US4062527A (en) * 1976-05-14 1977-12-13 Josef Schmitz Vibration device for silos for bulk materials
AU7575281A (en) * 1980-10-09 1982-04-22 Semenenko, I. Controlling discharge from silo
US4722300A (en) * 1986-03-10 1988-02-02 Beacon Industries, Inc. Automatic feeder for pets and other animals

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1473408A (en) * 1974-12-20 1977-05-11 Hosokawa Micron Kk Apparatus for feeding powdery material
US4062527A (en) * 1976-05-14 1977-12-13 Josef Schmitz Vibration device for silos for bulk materials
AU7575281A (en) * 1980-10-09 1982-04-22 Semenenko, I. Controlling discharge from silo
US4722300A (en) * 1986-03-10 1988-02-02 Beacon Industries, Inc. Automatic feeder for pets and other animals

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1129608A1 (en) * 2000-03-01 2001-09-05 Lehner Agrar GmbH Spreading device
CN102424214A (en) * 2011-08-31 2012-04-25 中冶南方工程技术有限公司 Anti-blockage raw coal cabin
FR3053896A1 (en) * 2016-07-13 2018-01-19 Exel Industries FLOW DEVICE FOR PRODUCT DISPERSION ASSEMBLY, IN PARTICULAR FOR AGRICULTURAL ENGINE

Also Published As

Publication number Publication date
AU5186899A (en) 2000-03-06

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