EP3914545A1 - Gurtförderer und trommel für einen gurtförderer - Google Patents
Gurtförderer und trommel für einen gurtfördererInfo
- Publication number
- EP3914545A1 EP3914545A1 EP19828271.7A EP19828271A EP3914545A1 EP 3914545 A1 EP3914545 A1 EP 3914545A1 EP 19828271 A EP19828271 A EP 19828271A EP 3914545 A1 EP3914545 A1 EP 3914545A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drum
- belt
- axis
- sensors
- sensor
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 230000001133 acceleration Effects 0.000 claims abstract description 25
- 238000005259 measurement Methods 0.000 claims description 20
- 238000012545 processing Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 238000012544 monitoring process Methods 0.000 claims description 8
- 238000011084 recovery Methods 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 6
- 230000005484 gravity Effects 0.000 description 5
- 238000009826 distribution Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
- B65G43/02—Control devices, e.g. for safety, warning or fault-correcting detecting dangerous physical condition of load carriers, e.g. for interrupting the drive in the event of overheating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
- B65G23/02—Belt- or chain-engaging elements
- B65G23/04—Drums, rollers, or wheels
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
- G01P15/18—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration in two or more dimensions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/02—Control or detection
- B65G2203/0266—Control or detection relating to the load carrier(s)
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/04—Detection means
- B65G2203/042—Sensors
Definitions
- the invention relates to drums for a belt conveyor and a belt conveyor and a method for operating the belt conveyor.
- Drums in conveyor systems must be well aligned so that the belt does not skew. Due to the size and weight, handling is difficult and alignment with aids such as spirit levels, laser measuring devices or the like. time consuming and cumbersome. A misalignment can often only occur during operation, e.g. due to deformation of the steel structure or movement of the subsurface. Reliable detection of such misalignment is not yet possible.
- damaged drums are often the cause of unplanned downtimes. Damage detected too late, such as cracks in the drum jacket or drum base, can also cause serious damage to the belt.
- a bearing roller for a belt conveyor is known from WO 2015/042661 A2, which is provided with sensors, in particular temperature sensors for monitoring the condition of the bearing roller.
- the storage roll is equipped with a generator for the generation of electrical energy.
- a belt conveyor is known from WO 2016/135642 A2, which is provided with a system for preventing fire.
- the shaft of a tape roll of the Belt conveyor is equipped with a temperature sensor.
- a transmitter is assigned to this sensor, the transmitter transmitting the sensor signals to an intended receiver.
- the energy required for this sensor system is generated inductively in the tape roll.
- a system for monitoring the state of the conveyor belt is known from WO 10033526 A1.
- the object of the invention is to reduce the operating costs and the downtimes of the belt conveyor.
- the belt conveyor can be switched off and / or an indication of the type of damage and location of damage in the belt can be made.
- damage can be prevented in the event of misalignment and a foreign body on the drum body.
- Force measuring devices and / or acceleration sensors are provided for this damage detection.
- the force measuring device comprises strain gauges. Strain gauges have been found to be particularly suitable because they are very robust and inexpensive and provide very accurate measurements.
- Each force measuring device preferably consists of at least two strain gauges, which are arranged offset on a circular ring.
- the number and arrangement of the strain gauges are ideally selected so that at least one strain gauge per force measuring device is always in the same circle segment as the belt lying on it. As a result, a good signal for the detection of belt damage, a foreign body or a belt connection can be generated at any time.
- an energy recovery device preferably a generator, is arranged between the drum jacket and the drum axis.
- the sensors can be supplied with electrical energy and possibly also a telecommunications device and also a signal processor with electrical energy.
- a cable-guided energy supply from the outside is therefore not required, which simplifies the construction. If a discharging energy store is used, regular replacement would be necessary, which is disadvantageous.
- the space available inside the drum jacket and drum base can be used for the arrangement. The energy supply is protected inside the drum, e.g. from moisture and dust.
- the sensors are arranged between the drum shell and the bearing of the drum axis. This means that the sensors are easily accessible from the outside and can be easily replaced in the event of a defect.
- misalignments of the drum in particular can be recognized particularly well on the basis of the deviations of the sensor data from the two sides from one another. The deviation can be a difference or a time offset.
- a signal processor is arranged on the drum axis. This signal processor can already process the measurement data. This makes it possible to reduce the amount of data transmitted by only transmitting data records that indicate misalignment or damage to the belt and / or bearing.
- the measurement data of the sensors can be transmitted wirelessly by means of this telecommunication device.
- a signal line for data transmission e.g. by means of a slip ring. This can be provided in particular under difficult environmental conditions in which wireless transmission is problematic or unreliable.
- sensor data associated with each drum side in particular data from force measuring devices and / or acceleration sensors, are recorded with a time assignment. There is a comparison of the temporally assigned sensor data. These sensor data are also referred to as measurement data.
- data processing In data processing, misalignment and / or belt damage due to a foreign body are detected. For this purpose, recorded differences in the sensor data of the different sides, which can include both a difference and a time offset, are used. In a preferred embodiment, it can be provided that the measurement data are already being processed and only data records are transmitted in which there are abnormalities. This can reduce the amount of data transferred. Data can be stored in the data processing, preferably in the central data processing, which directly allow the output of a misalignment or the indication of which type of damage to the belt is present at which location.
- the sensor data are generated by sensors between the drum base and the bearing from force and / or acceleration sensors arranged on both sides. This makes misalignments particularly easy to recognize from the sensor data.
- both belt tensile forces are almost the same. The difference arises from the bearing friction torque and can be neglected in comparison to the belt tensile forces.
- the belt tensile force in front of and behind the drum is therefore about half of the axle load measured using force sensors.
- the two belt tensile forces in front of and behind the drum differ by the circumferential force, which can be determined from the torsional stress component of the force measuring devices. If the belt tensile forces are known at both ends of the unloaded lower run, it is possible to determine the idler roller resistance based on the measurement data of the force measuring devices.
- the use of such a drum is therefore particularly advantageous as a supplement to the Voith product BeltGenius ERIC.
- FIG. 1 a section of a belt conveyor is shown.
- a drum 7 is shown.
- a belt 1 is deflected by the drum 7.
- the belt comprises a part designated as the upper run 6 and a part referred to as the lower run 5.
- the running direction of the belt is designated as the longitudinal axis of the belt with the X axis.
- the belt transverse axis 3 corresponds to the y axis and the z axis 4 runs counter to the force of gravity.
- the drum 7 is shown in detail in FIG.
- the drum 7 comprises a drum body 22 mounted on a drum axis 20.
- the drum axis 20 is supported on both sides by bearing 21.
- the axis of rotation of the drum axis is designated by 26.
- a drum 7 is equipped with a sensor system 10 for receiving measurement signals, a signal processor 24 for signal processing and with a telecommunication device 23.
- the recorded and generated data can be received by an assigned central data processing 30.
- strain gauges 12 are provided for detecting bending and torsional stresses. In the illustration shown, these strain gauges 12 are provided on both sides.
- acceleration sensors 13, preferably 3-axis, are attached to the drum axis 20, preferably also on both sides.
- the electrical energy required for sensors 10, signal processor 24 and remote data transmission 23 is provided by an integrated generator 25. The generator obtains the electrical energy from the drum speed.
- the belt 1 is controlled in the direction of the lower edge tensions.
- the two force measuring devices 11 on the drum axis 20 on the left and right between the drum base 28 and the bearing 21 deliver equally large forces in the z direction and practically none in the y direction a rotation about the z-axis to unequal forces left and right in the x direction and to axial forces in the y direction.
- the size of the angle of rotation around the z-axis can be deduced from the axle load (sum of the two forces in the x-direction) and the axial force.
- the position of the belt on the drum can be concluded from the ratio of the two forces in the x direction.
- the orientation of a 3D acceleration sensor 13 in space can be clearly determined, since the acceleration due to gravity is reflected in the three coordinate axes in accordance with the rotation of the sensor.
- the two acceleration sensors 13 e.g. Aligned on the shaft so that its y component is parallel to the drum axis 20 and if the drum 7 is ideally aligned horizontally (no rotation about the x axis), the acceleration due to gravity is only found in the x and sine and cosine signals. and z components according to the angle of rotation of the drum axis, while the y component measures no signal from the acceleration of gravity.
- the y component When the drum 7 is rotated about the x-axis 2, the y component also has a signal from the acceleration of gravity which fluctuates periodically with the drum speed, the height of which corresponds to the angular error.
- the drum body 22 increases the section modulus of the drum 7 against deflection, which occurs from the weight of the drum, but mainly from the belt tension.
- the force signals from the two force measuring devices 11 behave periodically uniformly and the deflection is found as a sinusoidal force signal in the y-direction of the same size.
- a crack in one of the two drum bottoms 28 or in the drum casing 29 will lead to a characteristic disturbance of these signals and, by comparing the signals from the two sides of the drum 7, will enable the size and position of the crack to be determined.
- the Effect of different crack shapes on the stress distribution in the drum axis 20 can be calculated using FEM. This information can be stored in a memory. This enables the damage to be assigned and characterized.
- the signals from the acceleration sensors 13 can be used to assess the state of the two bearings 21.
- the complete conveyor belt 1 of a belt system is composed of individual belt sections - usually by vulcanizing the appropriately prepared belt ends, and in the case of low-strength belts partly also by mechanical clamp connections.
- the connections represent a spatially sharply defined inhomogeneity of the belt, which can be clearly found both in the signals of the force measuring devices 11 and in those of the acceleration sensors 13. Since not all of the belt pieces have the same length, the sequence of the connections can be used to infer the longitudinal belt coordinate as follows: the drum speed can be determined very precisely from the signals from the sensors 10. On the basis of the drum speed and with the drum diameter, which is also known, an exact speed signal, the integration of which in time provides the longitudinal coordinate, can be determined.
- the belt 1 itself tends to skew - for example, because connections are made wrong or because the belt tensile force is not distributed symmetrically over the belt cross-section due to errors in the manufacturing process, this will be reflected in the force signals.
- the sum of the two force signals corresponds to the axle load from the two belt forces (rising and falling belt).
- the level of this axle load depends on the load and the current drive power and therefore usually changes very slowly.
- a misalignment arising from the belt itself will lead to a pattern recurring with the belt's rotational frequency in the distribution of the axle load between the two force measuring devices 11 and can thus be recognized and analyzed.
- a connection that becomes defective should be noticeable by a change in the signal pattern of this connection when it passes through the drum 7.
- Overstretched edge ropes of the belt shift the axle load to the "healthy" side.
- a transverse edge break shows up in a time-limited, asymmetrical distribution of the axle load.
- the permanent measurement of the axle load and the drum speed enable the creation of load spectra and prospective service life forecasts.
- the behavior of the transmission can be monitored by comparing the torque measurement in front of the transmission input with the torque measurement on the drum axis 20.
- the torque measurement in front of the gearbox can e.g. in the transmission-side part of a charge-controlled starting clutch, also referred to as a turbo clutch.
- the described recording of the longitudinal belt coordinate can be used to provide an application, the application being able to be displayed by mobile devices. This makes it possible to view the measurement data and the evaluation both in a remote mode and when the user is on site. For example,
- a targeted shutdown of the belt is made possible at a preselected point.
- This access can also be provided by a mobile device using the application.
- manual input of belt damage with assignment to the current belt position can also be provided.
- the use of at least one such intelligent drum in a suitable position is advantageous in relation to the measurement of the belt pretensioning force of a belt system.
- the provision of such a drum in the rear has proven to be advantageous.
- Valuable additional information can be collected. Based on this data, the idler roller resistance can be determined more precisely or the lack of a customer measurement of the belt tension can be compensated for.
- sensors can also be used to record the axle load in the bearings or the bearing contact surfaces.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Conveyors (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Structure Of Belt Conveyors (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019101698.3A DE102019101698A1 (de) | 2019-01-24 | 2019-01-24 | Gurtförderer und Trommel für einen Gurtförderer |
PCT/EP2019/086424 WO2020151892A1 (de) | 2019-01-24 | 2019-12-19 | Gurtförderer und trommel für einen gurtförderer |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3914545A1 true EP3914545A1 (de) | 2021-12-01 |
Family
ID=69024267
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19828271.7A Pending EP3914545A1 (de) | 2019-01-24 | 2019-12-19 | Gurtförderer und trommel für einen gurtförderer |
Country Status (7)
Country | Link |
---|---|
US (1) | US11840405B2 (de) |
EP (1) | EP3914545A1 (de) |
CN (1) | CN113329959A (de) |
CA (1) | CA3127510A1 (de) |
CL (1) | CL2021001907A1 (de) |
DE (1) | DE102019101698A1 (de) |
WO (1) | WO2020151892A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20230416009A1 (en) * | 2022-06-22 | 2023-12-28 | Pablo Gonzalez | Predictive maintenance system, methods, and apparatus for use with conveyor belts |
CN116198945B (zh) * | 2023-04-14 | 2023-08-25 | 中国矿业大学 | 一种皮带输送机跑偏监测并纠偏装置及方法 |
DE102023111575A1 (de) | 2023-05-04 | 2024-05-08 | Voith Patent Gmbh | System und Energieversorgungsvorrichtung |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE27129T1 (de) * | 1982-12-17 | 1987-05-15 | Erley & Boenninger Masch | Anlage zur ueberwachung der funktion von bandtragrollen in gurtfoerderern. |
GB2142146B (en) * | 1983-06-21 | 1986-07-16 | Coal Ind | Sensing conveyor belt tension remotely |
GB0107900D0 (en) * | 2001-03-29 | 2001-05-23 | Post Office | Improvements in monitoring systems |
US7034711B2 (en) * | 2001-08-07 | 2006-04-25 | Nsk Ltd. | Wireless sensor, rolling bearing with sensor, management apparatus and monitoring system |
CN2902975Y (zh) * | 2006-03-31 | 2007-05-23 | 韩士权 | 带式输送机输送带跑偏自动校正装置 |
US8260574B1 (en) * | 2007-12-21 | 2012-09-04 | Dematic Corp. | Diagnostic device for material handling system and method of diagnosing |
CN101429873B (zh) * | 2008-01-21 | 2011-04-13 | 樊铁山 | 利用燃气发动机直接驱动煤矿主斜井皮带输送机的方法 |
WO2010033526A1 (en) | 2008-09-19 | 2010-03-25 | Fenner Dunlop Americas, Inc. | Conveyor belt rip panels and belt rip monitoring |
SE536095C2 (sv) * | 2010-10-25 | 2013-05-07 | Eistec Ab | Rulle för en bandtransportör innefattande sensorer för övervakning av rullens kondition |
DK2635512T3 (da) * | 2010-11-02 | 2022-09-05 | Laitram Llc | Transportørsystem, transportbånd og fremgangsmåde under anvendelse af accelerometre |
CN102756899A (zh) * | 2012-07-27 | 2012-10-31 | 江苏高盛华宇电力设备制造有限公司 | 一种带式输送机用无源电动纠偏装置 |
AU2014328480A1 (en) | 2013-09-24 | 2016-04-14 | Vayeron Pty Ltd | An idler, a method for monitoring a plurality of idlers, and a conveyor system |
AU2015100473A4 (en) | 2014-08-04 | 2015-05-14 | Ezifix Mining Solutions Pty Ltd | Conveyor roller monitoring apparatus |
WO2016135642A2 (en) | 2015-02-25 | 2016-09-01 | Geoffrey Smith | Fire prevention |
US9533832B1 (en) * | 2015-06-11 | 2017-01-03 | Norman Victor Wheat | Belt misalignment sensing and sensor status sensing apparatus and method of use |
DE102016114524B4 (de) * | 2016-08-05 | 2020-09-03 | Interroll Holding Ag | Trommelmotor mit Frequenzumrichter und optionalem Bandspannungssensor |
EP3354604A1 (de) * | 2017-01-27 | 2018-08-01 | Schott AG | Rolle, insbesondere für rollenförderer |
BR112020012196A2 (pt) * | 2017-12-22 | 2020-11-24 | Flexible Steel Lacing Company | aparelho e método para monitorar sistemas transportadores |
-
2019
- 2019-01-24 DE DE102019101698.3A patent/DE102019101698A1/de active Pending
- 2019-12-19 CN CN201980089956.4A patent/CN113329959A/zh active Pending
- 2019-12-19 WO PCT/EP2019/086424 patent/WO2020151892A1/de unknown
- 2019-12-19 CA CA3127510A patent/CA3127510A1/en not_active Abandoned
- 2019-12-19 US US17/425,770 patent/US11840405B2/en active Active
- 2019-12-19 EP EP19828271.7A patent/EP3914545A1/de active Pending
-
2021
- 2021-07-19 CL CL2021001907A patent/CL2021001907A1/es unknown
Also Published As
Publication number | Publication date |
---|---|
US11840405B2 (en) | 2023-12-12 |
CL2021001907A1 (es) | 2022-03-11 |
DE102019101698A1 (de) | 2020-07-30 |
WO2020151892A1 (de) | 2020-07-30 |
US20220048715A1 (en) | 2022-02-17 |
CA3127510A1 (en) | 2020-07-30 |
CN113329959A (zh) | 2021-08-31 |
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