• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The method is intended for the maintenance of a conveyor belt (2) comprising a longitudinal conveyor belt (3) and a plurality of support stations (5) of the conveyor belt (3) distributed along the conveyor belt (3 ), each support station (5) comprising a cradle (9) on which the conveyor belt (5) rests. The method comprises the following steps: - inserting an airbag (27) in a deflated state under the conveyor belt (3), in a lifting position near one of the support stations (5); - inflate the airbag (27) to an inflated state in which the conveyor belt (3) rests directly on the airbag (27) and no longer rests on the cradle (9) of said support station (5); - perform a maintenance operation on said support station (5); - deflate the airbag (27) until it is deflated.
    公开号:FR3084070A1
    申请号:FR1856765
    申请日:2018-07-20
    公开日:2020-01-24
    发明作者:Rene Brunone
    申请人:Rene Brunone；
    IPC主号:
    专利说明:

    Method and device for maintenance of a conveyor belt, corresponding assembly
    The invention generally relates to the maintenance of belt conveyors.
    Such conveyor belts typically comprise a longitudinal conveyor belt and a plurality of stations for supporting the conveyor belt, distributed along the belt.
    Each support station has a cradle formed by one or more support members.
    The conveyor belt rests on the support members, which give it a specific shape, typically in a deep trough.
    The support members are typically rollers or pads.
    It is necessary, periodically, to replace the support members, which are worn by contact with the strip.
    Such an operation is inconvenient because the operator must lift the strip to disassemble the support members and separate them from the chassis.
    In this context, the invention aims to facilitate the maintenance of the conveyor belt.
    According to a first aspect, the invention relates to a method of maintaining a conveyor belt comprising a longitudinal conveyor belt and a plurality of stations for supporting the conveyor belt distributed along the conveyor belt, each support station comprising a cradle on which the conveyor belt rests, the method comprising the following steps:
    - insert an airbag in a deflated state under the conveyor belt, in a lifting position near one of the support stations;
    - inflate the airbag to an inflated state in which the conveyor belt rests directly on the airbag and no longer rests on the cradle of said support station;
    - perform a maintenance operation on said support station;
    - deflate the airbag until it is deflated.
    Thus, the airbag makes it possible to lift the strip above the support station on which the maintenance operation must be carried out.
    The operator can therefore easily intervene on the support station, in particular for the replacement of one of the band support members. The airbag is like an inflatable jack.
    The use of an airbag allows the band to be stably stabilized, in a position where it no longer has contact with the support station.
    The lifting of the strip is therefore easily obtained, without requiring the use of a sophisticated mechanical system.
    The airbag can be easily moved along the conveyor belt to provide maintenance at different points on the conveyor.
    The process is economical, because it only requires the implementation of simple and inexpensive means.
    The maintenance process can also represent one or more of the characteristics below, considered individually or in all technically possible combinations:
    - The cradle comprises several support members for the conveyor belt, the maintenance operation comprising the replacement of at least one of the support members;
    the conveyor belt rests on the cradle of said support station by a support surface, said support surface having in cross section a determined shape when the conveyor belt rests on the cradle of said support station, the airbag having a surface support provided to come to bear against the conveyor belt in the inflated state, said bearing surface having in the inflated state, in the absence of stress, said determined section;
    - the airbag is inflated by a fan;
    - the airbag and the fan are mounted on a chassis and thus form a one-piece portable sub-assembly;
    - the airbag, in the inflated state, has a pressure between 1 bar absolute and 3 bar absolute;
    - the belt conveyor comprises a conveyor frame, the airbag being mounted on the conveyor frame in the lifting position.
    According to a second aspect, the invention relates to a device for maintaining a conveyor belt comprising a longitudinal conveyor belt and a plurality of stations for supporting the conveyor belt distributed along the conveyor belt, each support station comprising a cradle on which the conveyor belt rests, the device comprising:
    - an airbag capable of selectively adopting a deflated state and an inflated state;
    - an inflator, arranged to inflate the airbag to its inflated state;
    the airbag being configured to, in the deflated state, be inserted under the conveyor belt in a lifting position near one of the support stations;
    the airbag being configured to, in the lifting position and in the inflated state, raise the conveyor belt so that the conveyor belt rests directly on the airbag and no longer rests on the cradle of said support station.
    The maintenance device can also represent one or more of the characteristics below, considered individually or in all technically possible combinations:
    the conveyor belt rests on the cradle of said support station by a support surface, said support surface having in cross section a determined shape when the conveyor belt rests on the cradle of said support station, the airbag having a surface support provided to come to bear against the conveyor belt in the inflated state, said bearing surface having in the inflated state, in the absence of stress, said determined section;
    - The maintenance device comprises a chassis on which the airbag and the inflation member are mounted, thus forming a portable sub-assembly in one piece.
    According to a third aspect, the invention relates to a set comprising:
    - a belt conveyor comprising a longitudinal conveyor belt and a plurality of conveyor belt support stations distributed along the conveyor belt, each support station comprising a cradle on which the conveyor belt rests; and
    - a belt conveyor maintenance device having the above characteristics.
    Other characteristics or advantages of the invention will emerge from the detailed description which is given below, by way of indication and in no way limitative, with reference to the appended figures, among which:
    - Figure 1 is a schematic profile representation of an assembly according to the invention, the airbag being in the deflated state;
    - Figure 2 is a front view of one of the support stations of Figure 1;
    - Figure 3 is a view similar to that of Figure 1, the airbag being in its inflated state;
    - Figures 4 and 5 are side and front views of the maintenance device of Figure 1, the airbag being shown in the inflated state; and
    - Figure 6 is a view similar to that of Figure 5, for an alternative embodiment of the invention.
    The assembly 1 shown in FIG. 1 comprises a belt conveyor 2.
    This conveyor is typically intended for the transport of divided materials, for example sand or ores from a quarry.
    The conveyor belt 2 comprises a longitudinal conveyor belt 3 and a plurality of support stations 5 of the conveyor belt distributed along the belt.
    The conveyor belt 3 is folded in a loop and engaged at its ends around two rollers of turnings 6, 7.
    Typically, one of the two rollers is a motor to drive the strip 3.
    The strip 3 is thus divided into an upper transport section 8 and a lower return section 8 ’, which is only partially shown in FIG. 1.
    The stations 5 support the strip along the upper section 8, and also along the lower section 8 ’.
    Each support station 5 comprises a cradle 9 on which the conveyor belt 3 rests (see FIG. 2). It also includes a support frame 11, through which the station 5 rests on the ground. For example, the chassis 11 of the different stations of the support 5 are structurally connected to each other by connection structures 15 as shown in FIG. 1. The chassis 11 and the connection structures 15 constitute the chassis 17 of the conveyor.
    The cradle 9 comprises a plurality of support members 19, mounted on the support frame 11.
    The support members 19 are typically rollers rotatably mounted on the support frame 11, or pads which are fixed relative to the support frame 11.
    In the case of rollers, anti-jamming protections 21, visible in FIG. 2, mask the so-called re-entrant angle formed by the strip 3 and the support rollers 19.
    The conveyor belt rests on the cradle 9 of the support station by a support surface 23, typically facing downwards.
    The cradle 9 is provided both to support the conveyor belt 3 and to confirm a specific shape, for example a deep gauge shape of the type shown in FIG. 2.
    To do this, in the example shown, the support station comprises three support members 19, arranged one beside the other transversely. The central support member 19 is substantially horizontal. The other two support members 19 are inclined towards the central support member.
    Thus, the support surface 23 has a determined shape in cross section when the conveyor belt 3 rests on the cradle 9.
    This shape is close to the shape of the cradle 9.
    The assembly 1 also includes a maintenance device 25, intended to facilitate the maintenance of the belt conveyor. This device 25 is shown schematically in Figures 1 and 3, and in more detail in Figures 4 and 5.
    The maintenance device 25 comprises:
    an airbag 27 capable of selectively adopting an inflated state and a deflated state; and
    - an inflator 29, arranged so as to inflate the airbag 27 until it is inflated.
    The cushion 27 is shown in the deflated state in FIG. 1, and in the inflated state in FIGS. 3, 4 and 5.
    Airbag 27 is an airtight pocket. It is made of any suitable flexible material, for example natural or synthetic rubber, polyurethane, or a coated and / or waterproof fabric.
    In the deflated state, the cushion 27 has the shape of a thin pancake, as illustrated in FIG. 1.
    Thus, the airbag 27 is configured to, in the deflated state, be inserted under the strip 3 in a lifting position, near one of the support stations 5, as shown in FIG. 1.
    Furthermore, the airbag 27 is configured to, in the lifting position and in the inflated state, raise the conveyor belt 3 so that the conveyor belt 3 rests directly on the airbag 27 and no longer rests on the cradle 9 of the support station 5. Such a situation illustrated in FIG. 3.
    To do this, the airbag has a support surface 29 intended to come to bear against the conveyor belt 3 in the inflated state. Advantageously, the support surface 31, in the inflated state and in the absence of stress, has in cross section the same determined shape as the support surface 23 of the conveyor belt 3.
    In the example shown, the support surface 31 has a deep trough shape. The term “cross section in the absence of stress” is understood here to mean the section of the bearing surface 31 when no external force is applied to the airbag 27, the shape of the bearing surface 31 resulting only from the pressure inside the airbag 27, this pressure being nominal.
    Because the support surface 23 of the strip 3 and the support surface 31 of the airbag 27 have the same cross section, the airbag 27 easily adapts below the strip 3, and can lift the latter without excessive force, since the force applied by the airbag 27 does not cause marked deformations of the strip.
    The inflator 29 is typically a fan. Alternatively, the inflator is an electric pump, a blower, a manual pump, or any other device for injecting a fluid into the airbag.
    The use of a fan is particularly advantageous, since such equipment is inexpensive and light. A compressor could also be used if it is necessary to reach high pressures inside the airbag. However, this type of equipment is heavier than a fan and more expensive.
    The airbag 27, in the inflated state, has a pressure between one absolute bar and three absolute bars. This is the internal pressure of the airbag 27.
    The bearing surface 31 extends over the entire transverse width of the strip. Longitudinally, it extends over a length of between 10 cm and 1 m.
    The maintenance device 25 also includes a chassis 33 on which the airbag 27 and the inflator 29 are mounted.
    For example, a lower face 35 of the airbag, opposite the bearing surface 31, is adhered to the frame 33.
    The inflator 29 is rigidly fixed to the chassis 33 by any suitable means.
    The chassis 33 is for example a metal profile made of Omega, of the type shown in FIGS. 3 and 4.
    By varying, it is of any other type.
    Advantageously, the maintenance device 25 is designed to be mounted on the chassis 17 of the belt conveyor when it is placed in the lifting position, as illustrated in FIG. 1 and in FIG. 3.
    The invention also relates to a method of maintaining a belt conveyor 2 comprising a longitudinal conveyor belt 3 and a plurality of support stations 5 of the conveyor belt 3 distributed along the belt.
    Thus, the maintenance process is provided for the conveyor belt described above.
    It is in particular intended to be produced with the maintenance device 25 described above.
    The maintenance process includes the following steps:
    - insert an airbag 27 in a deflated state under the strip 3, in a lifting position near one of the support stations 5;
    - inflate the airbag 27 to an inflated state in which the conveyor belt 3 rests directly on the airbag 27 and no longer rests on the cradle 9 of said support station 5;
    - perform a maintenance operation on said support station 5
    - deflate the airbag 27 until it is deflated.
    The airbag 27 is typically as described above relative to the assembly 1.
    The airbag 27 is inserted under the strip 3 so that the support surface 31 is immediately below the support surface 23 of the strip. It is oriented so that the airbag 27, once in its inflated state, fits exactly on the support surface 23, because the support surface 23 and the support surface 31 have the same cross section .
    The airbag 27 is mounted on the frame of the conveyor 17 in the lifting position.
    The airbag 27 is inflated by an inflation member 29, as described relative to the assembly 1. This member 29 is typically a fan.
    The lifting position is chosen close enough to the support station 5 so that, when the airbag 27 is inflated, the conveyor belt 3 is lifted above the cradle 9 and no longer rests thereon.
    Such a situation is illustrated in Figure 3.
    In the inflation step, the inflator 29 is triggered and sends air inside the airbag 27. The airbag gradually changes from its deflated state to its inflated state.
    The airbag 27 and the fan 29 are mounted on a frame 33, as described above.
    They thus advantageously form a portable one-piece sub-assembly.
    They rest on the conveyor frame 17 via the frame 33.
    At the end of the inflation step, the airbag has an internal pressure between one absolute bar and three absolute bars.
    The airbag 27 is kept in its inflated state throughout the maintenance step on the support station 5. The operators therefore have easy access to the support station and are not hampered by the strip 3.
    The maintenance step typically includes an operation to replace one or more support members 19. It may include other operations, for example interventions on other elements of the cradle 9 or on the chassis 11.
    After the end of the maintenance step, the airbag 27 is deflated until it is deflated. This then extracts the airbag from its lifting position.
    The maintenance device can then be transported to other points on the belt conveyor, to carry out other maintenance operations.
    The conveyor belt 3 is stopped, that is to say stationary, during the steps which have been described above.
    The invention has been described above with a cushion inflated with air. Alternatively, the cushion is inflated with another gas. According to another variant, the cushion is inflated by a liquid such as water.
    The invention has been described with an airbag whose support surface has the same cross section as the support surface of the strip. Alternatively, the bearing surface has another shape. For example, it has the shape of a transverse tubular rod, or any other suitable shape.
    According to an alternative embodiment illustrated in FIG. 6, the maintenance device 25 comprises two airbags 27.
    These cushions 27 are preferably identical to each other and are oriented in the same way.
    The two airbags 27 are mounted on two independent frames 33. As a variant, they are mounted on the same chassis 33.
    The two cushions 27 each have two orifices 35 connecting the internal volume of the cushion with the outside.
    The orifice 35 of a first of the two cushions 27 is fluidly connected to one of the orifices 35 of the second cushion 27 by a conduit 37. The conduit 37 is preferably removable. The other orifice 35 of the first cushion is connected to the discharge of the inflation member 29. The other orifice 35 of the second cushion 27 is closed by a plug, not shown.
    Thus, when the conduit 37 is connected to the orifices 35, the inflation member 29 makes it possible to inflate the two cushions 27 at the same time.
    The two cushions 27 are arranged so that they can be placed on either side of a support station 5, in the deflated state, in respective lifting positions. In the inflated state of the two airbags 27, the conveyor belt 3 rests directly on the two airbags 27 and no longer rests on the cradle 9 of the support station 5.
    Such an arrangement is particularly suitable for very heavy conveyor belts, or for a conveyor belt stopped under load, that is to say with products on the conveyor belt.
    It also allows for faster maintenance, since the cradle 9 of the support station 5 is well cleared and accessible when the strip is lifted on both sides.
    As a variant, several cushions 27 are placed on each side of the support station
    5, for example two cushions on each side, or three cushions, or more than three cushions.
    Alternatively, several cushions 27 are placed next to several support stations
    5 consecutive, for example one cushion or more per station for two or more support stations. This allows the simultaneous maintenance of two or more support stations once the cushions are inflated.
    All the cushions 27 are fluidly connected to one another as described with reference to FIG. 6, by conduits 37. A single inflation member 29 makes it possible to inflate all the cushions 27 at the same time.
    Alternatively, all the cushions 27 placed on the same side of the support station 5 are fluidly connected to each other as described with reference to the figure
    6, by conduits 37. Two inflation members 29 are sufficient to inflate all the cushions 27.
    权利要求:
    Claims (11)
    [1" id="c-fr-0001]
    1. -Method of maintenance of a conveyor belt (2) comprising a longitudinal conveyor belt (3) and a plurality of support stations (5) of the conveyor belt (3) distributed along the conveyor belt (3) , each support station (5) comprising a cradle (9) on which the conveyor belt (5) rests, the method comprising the following steps:
    - insert an airbag (27) in a deflated state under the conveyor belt (3), in a lifting position near one of the support stations (5);
    - inflate the airbag (27) to an inflated state in which the conveyor belt (3) rests directly on the airbag (27) and no longer rests on the cradle (9) of said support station (5);
    - perform a maintenance operation on said support station (5);
    - deflate the airbag (27) until it is deflated.
    [2" id="c-fr-0002]
    2. - A maintenance method according to claim 1, wherein the cradle (9) comprises several support members (19) of the conveyor belt (3), the maintenance operation comprising the replacement of at least one of the support (19).
    [3" id="c-fr-0003]
    3. - A maintenance method according to any one of the preceding claims, in which the conveyor belt (3) rests on the cradle (9) of said support station (5) by a support surface (23), said surface of support (23) having a determined cross-section when the conveyor belt (3) rests on the cradle (9) of said support station (5), the airbag (27) having a support surface (31) provided to come to bear against the conveyor belt (3) in the inflated state, said bearing surface (31) having in the inflated state, in the absence of stress, said determined section.
    [4" id="c-fr-0004]
    4. - Maintenance method according to any one of the preceding claims, wherein the airbag (27) is inflated by a fan (29).
    [5" id="c-fr-0005]
    5. - A maintenance method according to claim 4, wherein the airbag (27) and the fan (29) are mounted on a frame (33) and thus form a portable one-piece subassembly.
    [6" id="c-fr-0006]
    6. - A maintenance method according to any one of the preceding claims, in which the airbag (27), in the inflated state, has a pressure between 1 bar absolute and 3 bar absolute.
    [7" id="c-fr-0007]
    7. - A maintenance method according to any one of the preceding claims, in which the belt conveyor (2) comprises a conveyor frame (17), the airbag (27) being mounted on the conveyor frame (17) in lifting position.
    [8" id="c-fr-0008]
    8. - Maintenance device (25) of a conveyor belt (2) comprising a longitudinal conveyor belt (3) and a plurality of support stations (5) of the conveyor belt (3) distributed along the conveyor belt (3), each support station (5) comprising a cradle (9) on which the conveyor belt (3) rests, the device comprising:
    - an airbag (27) capable of selectively adopting a deflated state and an inflated state;
    - an inflation member (29), arranged to inflate the airbag (27) until it is inflated;
    the airbag (27) being configured to, in the deflated state, be inserted under the conveyor belt (3) in a lifting position near one of the support stations (5);
    the airbag (27) being configured to, in the raised position and in the inflated state, raise the conveyor belt (3) so that the conveyor belt (3) rests directly on the airbag (27) and does not rest more on the cradle (9) of said support station (5).
    [9" id="c-fr-0009]
    9. - A maintenance device according to claim 8, in which the conveyor belt (3) rests on the cradle (9) of said support station (5) by a support surface (23), said support surface (23). having a determined cross-section when the conveyor belt (3) rests on the cradle (9) of said support station (5), the airbag (27) having a bearing surface (31) intended to bear against the conveyor belt (3) in the inflated state, said bearing surface (31) having in the inflated state, in the absence of stress, said determined section.
    [10" id="c-fr-0010]
    10. - Maintenance device according to claim 8 or 9, wherein the maintenance device (25) comprises a frame (33) on which are mounted the airbag (27) and the inflation member (29), thus forming one-piece portable sub-assembly.
    [11" id="c-fr-0011]
    11. - Set (1) comprising:
    - a belt conveyor (2) comprising a longitudinal conveyor belt (3) and a plurality of support stations (5) of the conveyor belt (3) distributed along the conveyor belt (3), each support station (5 ) comprising a cradle (9) on which the conveyor belt (3) rests; and
    - a maintenance device (25) for the belt conveyor (2), according to any one of claims 8 to 10.
    类似技术:
    公开号 | 公开日 | 专利标题
    EP3597569A1|2020-01-22|Method and device for maintenance of a conveyor belt, corresponding assembly
    EP0189345B1|1989-10-18|Apparatus for assembling by calandering at least one glass sheet and at least one plastic film
    EP2858814B1|2016-08-24|Device for supporting a raw rubber tyre for the manufacture of a pneumatic tyre
    EP3538474A1|2019-09-18|Aircraft engine installation/removal and transfer device
    EP0159274B1|1988-08-24|Multifunctional tyre-securing device for mounting a tyre on a rim
    EP1742885A1|2007-01-17|Device and method for cambering a glass sheet
    CA2035109A1|1991-08-08|Articulated additional reinforcement for flexible tubular structure reinforcing heel and flexible tubular structure equipped with such a reinforcement
    EP0981453B1|2002-09-25|Assembly line of mounted assemblies
    FR2534191A1|1984-04-13|TIRE FULL RUBBER OR ANALOGUE MATERIAL WITH REMOVABLE ROLLER BELT
    FR2728881A1|1996-07-05|DEVICE FOR TRANSFERRING PART SUPPORTS FROM ONE CONVEYOR BELT TO ANOTHER CONVEYOR BELT
    FR2563164A1|1985-10-25|Locking device with multiple functions for mounting a tyre cover to a wheel rim
    EP0837242B1|2001-07-18|Peristaltic pump with disconnectable rollers
    FR2613710A1|1988-10-14|APPARATUS FOR MANUFACTURING HOLLOW GLASS SHEETS
    EP2734389B1|2015-08-12|Amphibious vehicle
    EP1923335A1|2008-05-21|Installation for transporting a load, with parallel tracks
    EP3619005B1|2021-06-23|Automated device for gripping and handling a tread for a tyre
    FR2640924A1|1990-06-29|
    EP2207739A1|2010-07-21|Device for supporting and transporting loads on a cushion of air
    FR2534171A1|1984-04-13|Gate shears comprising supporting rollers and a band for the evacuation of the cut sheet metal
    FR3071238A1|2019-03-22|BELT CONVEYOR AND METHOD OF EXTRACTING THE STRIP
    EP1113919A1|2001-07-11|Tyre casing holding device
    FR3084852A1|2020-02-14|TRACTION AID DEVICE WITH ELASTICITY TENSION BELT
    FR3041619A1|2017-03-31|CONVEYOR WITH A DEEP SELF-SUPPORTING AUGER STRIP AND USE OF SUCH A STRIP
    WO2001042078A1|2001-06-14|Device for lifting a caterpillar road wheel
    FR2782026A1|2000-02-11|Machining support for large rectangular section tubes, has double supports with arms to push tube around its axis
    同族专利:
    公开号 | 公开日
    CA3049523A1|2020-01-20|
    FR3084070B1|2021-06-25|
    US10822186B2|2020-11-03|
    US20200024089A1|2020-01-23|
    RU2019122472A|2021-01-18|
    EP3597569A1|2020-01-22|
    CN110733850A|2020-01-31|
    MA47026A|2020-07-29|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR2658495A1|1990-02-16|1991-08-23|Sarazin Maurice|Self lifting device with a low-pressure inflatable structure|
    WO2009122230A2|2008-04-02|2009-10-08|John Dowling|Conveyor belt lifting device|
    US9056755B1|2010-10-07|2015-06-16|Daniel W. Moy|Compact air compressor and vehicle jack|
    AUPN816496A0|1996-02-20|1996-03-14|Harm, Gary Clive|Belt lifting apparatus|
    US6062377A|1997-12-03|2000-05-16|Jervis B. Webb Company|Air supported flat belt conveyor and method of conveying articles|
    US6491156B1|2000-09-12|2002-12-10|Hudco Industial Products, Inc.|Fluid plenum conveyor trough and method for fabricating and joining the same|
    US9428372B2|2010-12-24|2016-08-30|Ezi Fix Mining Solutions Pty Ltd|Support assembly|WO2020047482A1|2018-08-30|2020-03-05|Joy Global Underground Mining Llc|Conveyor lifting device|
    US11242204B1|2020-10-30|2022-02-08|Asgco Manufacturing, Inc.|Manually-adjustable lifter apparatus for conveyor belts|
    法律状态:
    2020-01-24| PLSC| Search report ready|Effective date: 20200124 |
    2020-01-29| PLFP| Fee payment|Year of fee payment: 3 |
    2021-03-08| PLFP| Fee payment|Year of fee payment: 4 |
    2021-09-14| PLFP| Fee payment|Year of fee payment: 5 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1856765|2018-07-20|
    FR1856765A|FR3084070B1|2018-07-20|2018-07-20|METHOD AND DEVICE FOR MAINTENANCE OF A BELT CONVEYOR, CORRESPONDING ASSEMBLY|FR1856765A| FR3084070B1|2018-07-20|2018-07-20|METHOD AND DEVICE FOR MAINTENANCE OF A BELT CONVEYOR, CORRESPONDING ASSEMBLY|
    CA3049523A| CA3049523A1|2018-07-20|2019-07-12|Process and device for maintaining a conveyor belt, corresponding assembly|
    RU2019122472A| RU2019122472A|2018-07-20|2019-07-17|METHOD AND DEVICE FOR TECHNICAL MAINTENANCE OF BELT CONVEYOR AND CORRESPONDING UNIT|
    EP19187065.8A| EP3597569A1|2018-07-20|2019-07-18|Method and device for maintenance of a conveyor belt, corresponding assembly|
    MA047026A| MA47026A|2018-07-20|2019-07-18|METHOD AND DEVICE FOR MAINTENANCE OF A BELT CONVEYOR, CORRESPONDING ASSEMBLY|
    CN201910649395.0A| CN110733850A|2018-07-20|2019-07-18|Maintenance method and maintenance device for belt conveyor and corresponding assembly|
    US16/517,412| US10822186B2|2018-07-20|2019-07-19|Belt conveyor maintenance process and device, corresponding assembly|
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