Patent Application
20240033901
The present development relates to the field of removing worn treatment panel modules from an array of such treatment panel modules in a side by side configuration forming a treatment deck of ore or quarry material treatment apparatus, and preferably, replacing such worn treatment panel modules with replacement treatment panel modules.
Throughout this specification including the accompanying patent claims, terms such as “treatment panel module(s)” is intended to include screening panel module(s), dewatering panel module(s) and impact panel module(s), and “treatment deck(s)” is intended to include screening deck(s), dewatering deck(s) and impact deck(s). “Treatment apparatus” is intended to identify apparatus having one or more treatment deck(s) as aforesaid.
Ore treatment apparatus for mined ore or quarry material to break up and/or screen such material, commonly use treatment decks composed in part by panel modules located in a side by side array generally abutting one another and presenting an upwardly facing treatment surface. The ore material may be vibrated on the treatment deck(s) and may be screened through screening apertures of certain sizes and/or shapes, or may be simply passed along the treatment deck to be broken up, at least partially, in the process. The treatment panel modules may typically be secured by various fixing elements along abutting edge regions to underlying support rails normally running in a longitudinal direction of the treatment deck. A commonly utilised fixing system utilises fixing elements in the form of a securing pin fitting into a bore established by profile recessed regions in the abutting edge regions, however, other fixing systems exist, including arrangements where fixing formations integral with the treatment panel module engage directly with the underlying support rails or the like.
When a securing pin is utilised, the pin passes into the bore and through an opening in the underlying supporting rail to fix underneath the rail either directly or indirectly via downwardly projecting parts of the treatment panel modules. Fastening pin types made in two parts comprising a bush and a separate center pin where there is no panel lug that goes through the opening or hole in the underlying support rail, are also known. This is more commonly used in heavier loading applications. Other fixing systems are also used and some other form of securing method is employed including snap in fittings that engage with the underlying support structure or an intermediate member. Clip on type fastening arrangements are utilised in spot locations similar to securing pins via supporting deck rail openings or holes. Clip on type arrangements are also used where a panel module has an entire edge clipped by a fixing element and the fixing element is a long member that is fastened on to deck rail openings, or in some arrangements, directly to underlying cross support beams where there may not be deck supporting rails. Brand names for some of these fastening arrangements include “polysnap”, “CP-HDB”, “KBX”, “H-Pin” and “HDK-Pin”.
Screening and other similar ore or quarry material treatment apparatus may also include cover parts adapted to act as a shield between lower surfaces of the treatment panel modules and upper surfaces of a supporting structure for the treatment panel modules. The cover parts may also include sections that comprise or take some part in the fastening of the treatment panel modules to the underlying supporting structure. These cover parts are commonly made of similar materials to those forming outer surface regions of the treatment panel modules and can also be subject to wear and damage during use of ore or quarry material treatment apparatus.
The development of a modular ore treatment deck structure has occurred over a lengthy period of time as ore treatment decks, in use, tend to wear in an uneven manner. Using a modular treatment deck structure allows selected worn individual treatment panel modules to be removed and replaced rather than having to replace the whole treatment deck.
In this type of ore treatment apparatus, it is relatively common for the treatment panel modules to be constructed from moulded hard wearing elastomers and polymer materials including but not limited to, polyurethane, polyamide, ultra high molecular weight polyethylene, and rubber materials. These materials will normally have sufficient elasticity to minimize the likelihood of apertures being blocked, particularly screening apertures in a screen vibration machine. In some instances, multiple such materials may be used. The moulded materials may be moulded over a sub-frame of a suitable metal such as steel or steel alloy. It is also relatively common for these screen panel modules to have a square or rectangular plan configuration with the most typical sizes 1 ft×1 ft (0.3 m×0.3 m) or 1 ft×2 ft (0.3 m×0.6 m).
The upwardly facing treatment surface of the treatment decks may be generally flat or may include screening apertures and localised upwardly directed projections such as bars or individual projecting elements of various configurations separated by valleys or gutters.
It is of course the moulded material of these treatment panel modules that primarily wears to varying degrees during operational use. However, some treatment panel modules can have a treatment surface that has exposed “other material” zones, or such “other material” zones become exposed during operational use, and these other material zones also wear to varying degrees during operational use. These other materials may include ceramic or metal inserts, or in fact the metal support frame work supporting the moulded material may become exposed. The wear that does occur, tends to occur to varying degrees across individual panel modules as well as across a treatment deck comprised of an array of such panel modules. At present establishing the degree of wear is achieved by visual observation by work personnel. There have been a number of attempts to assist with wear assessment by visual observation or other means and these include, for example, providing inserted materials such as differing colours in the moulded material at differing depths from the upward facing treatment surface, providing transmittable sensors at various depth levels, and providing apertures or other inclusions that change in shape or size at a design distance from the upper surface indicative of wear reaching a stage where the treatment panel module should be replaced.
One difficulty experienced with treatment apparatus of the above discussed type is that they will often include a stack of treatment decks, that is, one being arranged generally above the other with quite limited physical space between treatment decks. Moreover, often the structure of such treatment apparatus is such that, even with the uppermost deck, there are machine structural parts that limit the space available above the uppermost deck. Often environmental lighting is not good and the closely positioned nature of stacked treatment decks further adversely affects viewability of the screening decks. These factors can result in work personnel having to crawl into confined spaces positioned between treatment decks or onto a limited space zone above an uppermost treatment deck to assess wear occurrence on the treatment panel modules and other issues including other damage around the treatment deck and also potential damage to the treatment deck positioned immediately above. These problems are further exacerbated if the work personnel need to undertake renovation work such as replacing one or more treatment panel modules which, at present, is essentially a manual task with the assistance of manually operated tools. Dangers are also presented to work personnel if they have to enter between decks or get materials or tools between decks or to external work zones. Entering these restricted space regions is both difficult and hazardous. The problems are increased if the treatment panel module must be replaced because, to do so manually, is labour intensive manual work that must be undertaken with manual tools and increases the level of danger and work effort imposed on the worker who must undertake same within such confined areas.
As a result, any ability to mechanise some or all of the steps required to renovate a treatment deck, including screen decks, by avoiding the need for work personnel to enter the treatment apparatus for at least some or all of these steps, is a significant step forward.
Accordingly, it is an objective of the present disclosure to provide robotic apparatus that is capable of removing a worn or damaged treatment panel module of a treatment deck in ore treatment apparatus without the need for work personnel to enter spaces within the ore treatment apparatus. A particularly preferred aspect of this disclosure is to provide robotic apparatus that is capable of removing a worn or damaged treatment panel module and replacing same with a replacement treatment panel module without the need for work personnel to enter spaces within the ore treatment apparatus.
A preferred objective may be to integrate such robotic apparatus with scanning means that may provide an automated wear assessment of the treatment deck without the need for work personnel to enter the ore treatment apparatus and particularly not confined spaces of such ore treatment apparatus. While this is of course preferred, utilisation of the robotic apparatus of the present disclosure following manual observation, or observation by any other means, of wear or other damage associated with the treatment deck, still provides significant advantages.
According to one aspect of this disclosure robotic apparatus is provided for extraction of a treatment panel module from a treatment deck of ore or quarry material treatment apparatus where the treatment deck includes a plurality of said treatment panel modules positioned in a side by side array secured to an underlying deck support structure, said robotic apparatus including: a robotic support structure; transport means for moving said robotic support structure, in use, on or over said treatment panel modules of a said treatment deck; drive means for actuating said transport means; and a treatment panel module handling mechanism including tool mounting means adapted, in use, to mount tool means cooperable with a said treatment panel module intended to be removed from the treatment deck to enable releasing of a said treatment panel module from the underlying deck support structure, said treatment panel module handling mechanism further including lift means operable once a released said treatment panel module has been engaged by said tool means, said lift means is operable to lift the engaged said treatment panel module from said treatment deck. Preferably, the tool means may additionally be cooperable with fixing means holding said treatment panel module intended to be removed to the underlying deck support structure, to release said fixing means from the underlying deck support structure.
Preferably, the transport means is steerable whereby said treatment panel module handling mechanism is positionable relative to said treatment panel module intended to be removed from said treatment deck. Conveniently the transport means is steerable over a predefined course of movement or alternatively is steerable over an operator selected course of movement.
In one preferred embodiment, the robotic apparatus may include a first guide track means and a second guide track means, each being, in use, fixable to said treatment apparatus on opposed sides of a said treatment deck whereby said robotic support structure extends across and above said treatment deck, a respective said transport means being movable along said first and said second guide track means.
In a still further preferred embodiment, the tool mounting means may be connected to said robotic support structure for movement relative to said robotic support structure along at least one path of movement. The at least one path of movement may include two orthogonal movement directions.
In another possible preferred embodiment, the robotic support structure or the tool mounting means may have at least one extraction tool adapted, in use, to release a fixing means retaining a said treatment panel module from the underlying deck support structure of the treatment deck. Preferably, the fixing means includes one or more fixing elements, said extraction tool being capable of removing the or each said fixing element.
In an alternative preferred embodiment, the treatment panel module handling mechanism may include an extending arm structure connected to said robotic support structure at an inboard end and to said tool mounting means at an outboard end of said extending arm structure. Conveniently, the extending arm structure might be extendable or retractable in length. Preferably, a first pivot joint structure connects the inboard end of the extending arm structure to said robotic support structure for selective movement about one or more pivot axes. For example, the first pivot joint structure may enable selective pivoting movement about at least an upright first pivot axis of the extending arm structure relative to said robotic support structure. Still further, the first pivot joint structure may enable selective pivoting movement of the extending arm structure relative to the robotic support structure about at least a second pivot axis transverse to said extending arm structure.
Preferably the first pivot joint structure might be connected to said robotic support structure in a manner enabling said first pivot joint structure to be selectably raised or lowered relative to said support structure.
In another possible configuration, a second pivot joint structure is provided between said tool mounting means and said outboard end of said extending arm structure. The second pivot joint structure may provide selective pivotal movement of said tool mounting means about a third pivot axis extending in a general direction of said extending arm structure. Still further, the second pivot joint structure provides for selective pivotal movement of said tool mounting means about a fourth pivot axis transverse generally to said extending arm structure.
In a still further possible preferred embodiment, the extending arm structure includes at least two articulated arm members connected by a third pivot joint structure enabling relative selective movement of said articulated arm members about a fifth pivot axis disposed generally transverse to said extending arm structure. Conveniently, at least one of the articulated arm members is constructed to be selectably extended or retracted. In a possible alternative arrangement, three said articulated arm members are provided wherein adjacent pairs of said arm members are connected by a said third pivot joint structure. Further, the inboard end of the extending arm structure may be selectably translationally movable along a defined path relative to said robotic support structure while remaining connected thereto.
In a further preferred embodiment, the tool mounting means, or said tool means, is mounted to selectably move in a direction towards said robotic support structure and/or in a direction away from said robotic support structure, said tool means, in one form, being capable of releasing an extracted said treatment panel module held by said tool means into a storage zone in said robotic apparatus. The storage zone may also, in use, be configured to hold replacement said treatment panel modules.
In a still further preferred embodiment when separate fixing elements are utilised to secure the treatment panel modules to the underlying support structure, replacement fixing element supply means is provided carried by said robotic support structure or by said tool mounting means, said replacement fixing element supply means carrying a plurality of replacement said fixing elements. The robotic apparatus may further include at least one installation tool adapted, in use, to install a replacement said fixing element to secure a replacement said treatment panel module to the underlying deck support structure, the or each said installation tool being mounted to or mountable to said tool mounting means. The or each said installation tool may be mountable to said tool mounting means by removing the or each of said extraction tool(s) and mounting a said installation tool in place of a said extraction tool. In another possible configuration, a said installation tool and a said extraction tool may be mounted to the tool mounting means in pairs in manner permitting a respect one of each said pair of said installation tool and said extraction tool to be selectively moved to an operative position.
In yet another preferred embodiment, the treatment panel module handling mechanism may also be configured to engage with and hold a replacement said treatment panel module located in a storage zone of said robotic support structure, said replacement said treatment panel module held by the treatment panel module handling mechanism being movable by said robotic apparatus to an installation position in said treatment deck.
Preferably, the robotic apparatus may include first scanning means carried by the robotic apparatus and positioned, in use, to scan a said treatment deck and to create scanned information data being indicative of wear levels on respective said treatment deck and/or fastening means therefore, if provided. The first scanning means may be carried on the treatment panel module handling mechanism or the robotic support structure. The first scanning means may be a said tool means mountable to said tool mounting means. The robotic apparatus, with or without the aforesaid first scanning means, may include a second scanning means positioned, in use, to scan said treatment deck to create further scanned information data, said further scanned information data being indicative of at least one or more of position information data regarding one or more said treatment panel modules, positional information data for installation position(s) for fixing means intended to secure said treatment panel modules to the underlying deck support structure, and positional information data for fixing means, if provided, for securing said treatment panel modules to the underlying deck support structure.
The robotic apparatus may further include first control means positionable, in use, externally of the treatment deck on which the robotic apparatus is intended to operate, said first control means being adapted to receive said scanned information data and to provide control signals to second control means positioned on said robotic apparatus controlling operation of said robotic apparatus on said treatment deck based on said scanned information data. Conveniently communication between said first control means and said robotic apparatus, in use, on said treatment deck occurs wirelessly.
Preferably the robotic apparatus further includes power means, the power means providing power to drive at least the transport means. The power means may be rechargeable battery means carried on the robotic apparatus. As a possible alternative, the power means might include an external power supply connected to the robotic apparatus by an umbilical electrical supply cord. The power means, from whatever source, may provide required power to any operational parts utilised by the robotic apparatus.
It is anticipated that in some preferred arrangements, the robotic apparatus will include cleaning fluid (eg water) spray nozzles directable at the treatment deck, or where possible, underneath regions of the treatment deck, to enable debris or other materials to be removed from treatment deck modules, fastening means or other regions of a treatment deck including the underlying support regions. Cleaning fluid (eg water) could be supplied to such cleaning fluid spray nozzles via an umbilical type hose connection.
The various preferred embodiments outlined in the foregoing paragraphs enable aspects of the tasks required to partially or wholly renovate a treatment (including screening) deck of ore or quarry material treatment apparatus to be undertaken without or minimizing the need for work personnel to enter the internal regions of the treatment apparatus.
Referring to
As can be seen in
While
Ore or quarry material to be treated by vibratory ore treatment apparatus 10 would typically be fed to an infeed end 34 of the upper treatment deck 15 and would be moved along the upper treatment deck towards the opposed end 35. In the process of this movement by way of vibrations imposed by vibration creating mechanism 73, ore particles of a certain size would be screened through the upper treatment deck 15 to be deposited on the lower treatment deck 14 where a secondary screening process may be undertaken.
As shown in
The robotic apparatus 11 may be best seen in
The support frame 17 includes a storage zone 40 onto which replacement new treatment panel modules 13 are loaded in a predetermined array at the commencement of a work period.
The robotic apparatus 11 includes a treatment panel module handling mechanism 41 which is connected to the support frame 17 to move along guide tracks 42, 43 on opposed sides of the storage zone 40. Drive means (not shown) to selectably move the treatment panel module handling mechanism 41 along the guide tracks 42, 43 in the direction (back and forward) indicated by arrow 44 is provided activated by command signals issued by the operator 37 via the control means 36 and/or the mobile control device 38.
The treatment panel module handling mechanism 41 includes storage cartridge means 46 that is arranged to store new and used fixing devices for securing the treatment panel modules 13 to the underlying support frame rails 25. The fixing devices may be securing pins or any other form of fixing element discussed earlier in this specification. The cartridge means 46 may be configured to feed, on receipt of command instructions from the operator 37, a new fixing device to a position of use when a replacement treatment panel module 13 is being installed, and to grip and move a used such fixing device removed from a worn treatment panel module 13 being removed to a storage zone. Separate units of the storage cartridge means 46 might be provided on either side of the treatment panel module handling mechanism 41. Associated with the or each of the storage cartridge means 46 is a fixing device insertion tool or extraction tool 47. The insertion/extraction tool 47 may be mounted to a portion 48 of the treatment panel module handling mechanism 41 that extends beyond the side edge of the support frame 17 to allow the insertions/extraction tool 47 to have access to fixing device insertion position on a treatment deck 14 or 15, or to an installed fixing device on the deck 14 or 15 to allow its selective extraction.
The treatment panel module handling mechanism 41 is mounted for sliding or other translational movement relative to the support frame 17 and further includes a tool mounting means 49 that also extends beyond a side edge of the support frame 17. The tool mounting means may include a body part 50 that is movable along guide tracks 42, 43, or in an alternative, can have a slide plate 54 allowing selective movement in the direction of arrows 45. The tool mounting means 49 may include a variety of tool means including, as illustrated, a gripper support plate 51 or similar structure mounted from the slide plate 54 or body part 50 that includes gripper element means to attach/release a treatment panel module 13 during either an installation or an extraction process. The gripper element means may be suction gripping elements, physical or mechanical gripping and release elements or any other suitable arrangements operated electrically wholly or in part. The gripper support plate 51 is selectably movably mounted by lift means (not shown) relative to the body part 50 or the slide plate 54, to move at least in an up or down direction. The gripper support plate 51 is preferably also mounted to achieve at least limited selective movement side to side, forward and back, rotation, and tilting, relative to the decks 14 or 15. This assists with extraction of, and installation of, treatment panel modules 13 from a treatment deck 14 and 15. Still further it is necessary for treatment panel modules 13 to be bodily moved from or to the storage zone 40 on the support frame 17 during installation or extraction processes on the decks 14 or 15. This means that the gripper support plate 51 needs to be movably mounted to move in the direction of arrow 45 either by the gripper support plate 51 moving relative to the slide plate 54 or by the tool mounting means 49 moving relative to the body part 50.
The tool mounting means 49 may further carry scanning means 52 that may include camera means or any other suitable scanner device(s) that permit observation of treatment panel modules 13 installed on the treatment decks 14 or 15 and any fixing elements for such treatment panel modules 13. Any established images or scanned data material is transmitted, preferably wirelessly, to the control means 36 and/or the mobile control device 38. In a possible alternative, but less preferred embodiment, umbilical cord or cords can be provided to transfer images or scanned material data to the control means 36 and/or the mobile control device 38.
The scanning means 52 also enables observation of installation processes during installation of a replacement treatment panel module 13. In a possible alternative preferred arrangement, the scanning means 52 might also include means for scanning wear levels on the treatment decks 14 or 15. Cleaning fluid delivery means 53 may be provided to spray cleaning fluid such as water on either the treatment decks 14 or 15 to remove as much debris as possible therefrom prior to undertaking extraction or installation processes, or alternatively to clean away remaining debris from the underlying framework including the module supporting rails 25 to assist with installation of a replacement treatment panel module 13. The cleaning fluid delivery means 53 may include one or more controllable spray nozzles (not shown) to direct the cleaning fluid selectably where desired by the operator 37 via the control means 36 and/or the control device 38. Cleaning fluid (such as water) might be supplied by a suitable flexible hose or similar to the delivery means 53.
In one preferred embodiment, the robotic apparatus 11 may have a length as illustrated approximating but just short of the transverse width dimension of each of the treatment decks 14, 15, such that the robotic apparatus 11 can be moved on the transport means 18, 19 up or down the length of the decks 14, 15. In so doing, the treatment panel module handling mechanism 41 can be selectably moved transversely across the treatment decks 14 or 15. This, however, is not essential. The length of the frame structure 17 of the robotic apparatus 11 might be shorter than that illustrated in the annexed drawings. With this preferred embodiment the transport means 18, 19 might be selectably operated to effectively rotate the frame structure 17 on the particular treatment deck 14 or 15 such that the frame structure 17 is disposed extending in a longitudinal direction of the deck 14 or 15, that is, at 90° to the embodiment illustrated in the annexed drawings. In this configuration, the frame structure 17 can be moved transversely across the deck 14 or 15. This provides improved access to the treatment panel modules positioned adjacent the side walls 71 of the ore treatment apparatus 10.
With the preferred embodiment shown in
The robotic extending arm structure 66, in the preferred embodiment illustrated has three arm members 68, 69 and 80, with adjacent pairs joined by respective third pivot joint structures 81a, 81b. At an outboard end of the robotic extending arm structure 66 is a tool mounting means 82 selectably connectable with a variety of tool means 84 carried by the robotic support structure 17 as further described in the following. A second pivot joint structure 83 is provided between the outboard end of the robotic extending arm structure 66 and the tool mounting means 82. The first, second and third pivot joint structures 67, 81a and 81b, may have multiple degrees of selectable pivotal movement under control of a computer based control system guided, at least in part, by scanned data information relating to scanned treatment deck related conditions. The first pivot joint structure 67 might provide for pivotal movement about a first axis perpendicular to the robotic arm mounting plate 65, about a second horizontal axis generally perpendicular to the first axis and about an upright axis perpendicular to the second axis. Similarly, the second pivot joint structure 83 might be constructed to have two or three pivot axis disposed generally perpendicular to one another. The third pivot axes 81a, 81b might have on or multiple pivot axes. Conveniently, any form of mechanism is provided to allow for selective movement of the respective first, second or third pivot joint structures 67, 83, 81a and 81b with control line means 85 enabling control signals and power supply as required to the various tool means 84. Power may be supplied from an external power supply with an umbilical supply line (not shown) with control means also being provided (also not shown) for controlling the robotic arm structure 66.
The tool means 84 include a scanning unit 86 stored on the robotic support structure 17 and when required for use, can be connected to the tool mounting means 82 via a mounting fitting 87. The robotic extending arm structure 66 can then move the scanning unit 86 to a position of use capable of scanning any required aspect of the treatment deck including treatment panel modules 13 and fastening devices therefor. The scanning unit 86 can be moved over the treatment deck by movement of the robotic apparatus 60 on the transport means 18, 19 or by movement of the robotic extending arm structure 66. The tool means 84 might also include a gripper mechanism 88 that includes releasable gripper elements to enable a worn treatment panel module 13 to be held, lifted out of its use position in the treatment deck, and moved to the storage zone 40a/40b. The gripper mechanism 88 can be connected with the mounting fitting 87 by moving the robotic extending arm structure to the storage position for the gripper mechanism 88 on the robotic support structure 17. A replacement treatment panel module 13 can be picked up by the grip mechanism 88 from the storage zones 40a, 40b and position in the treatment deck.
The tool means 84 might also include a variety of other items including fixing element extracting tool means, fixing element installing means, cleaning fluid (water) supply nozzle means and means for supplying cleaning fluid thereto. Storage means 89 for replacement fixing elements and for storing extracted used fixing elements might also be carried on the robotic support structure 17. Any feature or aspect described with reference to the embodiment shown in
It will be understood that any terms such as “comprises”, “comprising”, “includes” and/or “including” when used in this specification, specify the presence of stated features, items, steps, operations, elements and/or components, but do not preclude the presence of or addition of one or more other features, items, steps, operations, elements, components and/or groups thereof. Throughout this specification, references is made to treatment deck(s) and parts thereof including treatment panel modules and fasteners therefore releasably securing the panel modules to underlying support structures. Such treatment deck(s) are often found in vibrating screening apparatus for mineral processing and handling in mining and quarrying activities; however, the terms “treatment deck or decks” is intended to also relate to any apparatus or equipment used in comparable use applications.
It will be further appreciated by those skilled in this art, that many variations and modifications to the features, configurations and arrangements of the mobile robotic apparatus 11 or 60 disclosed herein might be made within the scope of the accompanying claims and are considered part of this disclosure.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2020904723 | Dec 2020 | AU | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/AU2021/051491 | 12/15/2021 | WO |
