US20080115372A1 - Rail Assembly, Rail Switch And A Transport Device Provided With A Magnetostrictive Sensor - Google Patents

Rail Assembly, Rail Switch And A Transport Device Provided With A Magnetostrictive Sensor Download PDF

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Publication number
US20080115372A1
US20080115372A1 US10/557,315 US55731504A US2008115372A1 US 20080115372 A1 US20080115372 A1 US 20080115372A1 US 55731504 A US55731504 A US 55731504A US 2008115372 A1 US2008115372 A1 US 2008115372A1
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United States
Prior art keywords
situated
measurement
vehicle
rail
marking
Prior art date
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Abandoned
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US10/557,315
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English (en)
Inventor
Hanspeter Vogel
Peter Huber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SCHIERHOLZ-TRANSLIFT SCHWEIZ AG
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SCHIERHOLZ-TRANSLIFT SCHWEIZ AG
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Assigned to SCHIERHOLZ-TRANSLIFT SCHWEIZ AG reassignment SCHIERHOLZ-TRANSLIFT SCHWEIZ AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HUBER, PETER, VOGEL, HANSPETER
Publication of US20080115372A1 publication Critical patent/US20080115372A1/en
Abandoned legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/48—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using wave or particle radiation means
    • G01D5/485—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using wave or particle radiation means using magnetostrictive devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/103—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate comprising silica
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/12—Naturally occurring clays or bleaching earth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/16—Alumino-silicates
    • B01J20/18—Synthetic zeolitic molecular sieves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/34—Regenerating or reactivating
    • B01J20/345—Regenerating or reactivating using a particular desorbing compound or mixture
    • B01J20/3458—Regenerating or reactivating using a particular desorbing compound or mixture in the gas phase
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D47/00—Loading or unloading devices combined with vehicles, e.g. loading platforms, doors convertible into loading and unloading ramps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
    • B61L25/02—Indicating or recording positions or identities of vehicles or trains
    • B61L25/025—Absolute localisation, e.g. providing geodetic coordinates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
    • B61L25/02—Indicating or recording positions or identities of vehicles or trains
    • B61L25/026—Relative localisation, e.g. using odometer

Definitions

  • the present invention relates to a rail system, a switch, and a transport device having magnetostrictive sensors according to the preamble of the independent claims.
  • a rail system for a packaging machine is known that is equipped with magnetostrictive sensors in order to measure the position of the vehicles.
  • Each sensor has a measurement head and a measurement bar, and determines from a runtime delay the position of a marking magnet attached to the vehicle that operatively interacts with the measurement bar.
  • a plurality of magnetostrictive sensors are provided whose measurement bars overlap at their ends.
  • the measurement bars situated one after the other form at least one measurement path that runs along the rail system, in which the measurement bars do not overlap. This increases the measurement precision, or simplifies, with the same degree of precision, the construction and the calibration, because a lateral offset of the measurement bars is not required.
  • At least two marking magnets are provided that are situated one after the other in the direction of travel.
  • the marking magnets are situated in such a way that even during a transition from one measurement bar to the next, at least one marking magnet is always effectively connected to at least one of the measurement bars.
  • the measurement control unit can also reliably determine the position of vehicles in the area of the transition.
  • the system of magnetostrictive sensors according to the present invention is advantageous in particular if the rail system has a multiplicity of rail elements situated one after the other, at least one measurement bar being situated in each rail element. Because no overlapping of the measurement bars is necessary, the construction and assembly of the rail elements is simplified.
  • the switch has, as is standard, a first, a second, and a third end, the rail system branching from the first end into the second and the third end.
  • the switch has magnetostrictive sensors for measuring vehicle positions, each sensor having a measurement bar and a measurement head in order to detect, from a runtime delay, the position of a marking magnet situated on a vehicle.
  • a measurement bar extends from the first to the second end and a measurement bar extends from the first to the third end. This makes it possible to precisely measure the position of the vehicles on both switch paths.
  • the measurement bars are preferably situated laterally outside the drive device, so that these measurement bars do not cross one another, thus simplifying the construction.
  • the vehicle is equipped with at least two marking magnets situated next to one another transverse to the direction of travel, so that, independent of the path traveled on the switch, at least one of the marking magnets is effectively connected to one of the measurement bars.
  • rail system is understood as a guide system for a vehicle that can run in a straight line or in curved fashion, and/or can comprise at least one corner piece and/or at least one switch.
  • FIG. 1 shows a side view of a transport device according to the present invention
  • FIG. 2 shows a view from above of the transport device of FIG. 1 ,
  • FIG. 3 shows a section along the line III-III in FIG. 2 .
  • FIG. 4 shows a detail from FIG. 3 .
  • FIG. 5 shows a section along the line V-V of FIG. 2 .
  • FIG. 6 shows a view of a switch from above
  • FIG. 7 shows a section through an alternative embodiment of a rail element.
  • the transport device shown in FIGS. 1 to 3 comprises a rail system 1 formed by a multiplicity of rail elements 2 situated one after the other.
  • Each rail element 2 has a basic element 3 , manufactured by casting, in which there are situated two guide rods 4 , a magnetostrictive sensor 5 having a measurement bar 6 and measurement head 7 , and coils 8 having laminated cores as an active part of a linear drive mechanism.
  • the vehicle side of rail element 2 is covered by a stainless steel plate 9 .
  • Vehicles 11 traveling on the rail system are made up of a plurality of vehicle parts 11 a, 11 b, connected to one another in hinged fashion, and each having two wheels 12 .
  • a total four marking magnets 13 are situated on each vehicle, two on each side.
  • guide magnets 14 are fastened to vehicle 11 .
  • drive magnets 15 are situated on the lower side in the center of the vehicle that work together with coil 8 in order to drive vehicle 11 along the rail system.
  • Guide magnets 14 are situated vertically above guide rods 4 .
  • the latter are each made up of a U-shaped section whose limbs are oriented towards the railway and that extends along the longitudinal axis of the rail system and is made of a magnetizable material.
  • magnetizable refers to ferromagnetic or paramagnetic materials that have a magnetic susceptibility much greater than 1 and that exert a strong attractive force on guide magnets 14 .
  • guide magnets 14 are polarized in such a way that different polls are situated over the two limbs of the respective guide rod 4 , so that there is a magnetic lock through the U-shaped section.
  • Guide magnets 14 are dimensioned so as to produce an interaction with guide rods 4 that is sufficiently strong to hold the vehicle on rail system 1 even in curves. If guide magnets 14 are sufficiently strong, vehicles 11 can also be situated in suspended fashion.
  • Control unit 17 forms a control loop whose manipulated variable is the currents through the individual phases of coils 8 and whose regulating variable is the measured vehicle position.
  • the currents through the coils of the control unit are selected in such a way that the vehicle travels or maintains a predetermined position (which can be time-dependent), the current position being determined using magnetostrictive sensors 5 .
  • each magnetostrictive sensor 5 has a measurement bar 6 that extends along the longitudinal direction of the rails.
  • measurement bar 6 is situated in the U-shaped section of one of the guide rods 4 (as shown in FIGS. 3 and 4 ), and runs lateral to coils 8 along the outer edge of rail system 1 , as is shown in FIG. 2 .
  • Measurement bar 6 is made of a magnetostrictive material. A current pulse flows through it at regular temporal intervals; this pulse interacts with the field of marking magnets 13 and produces an ultrasound pulse. The ultrasound pulse runs along the sensor bar and is detected in the respective measurement head 7 . From the time delay between the current pulse and the detected ultrasound pulse, the position of marking magnet 13 can be inferred.
  • Magnetostrictive sensors of the type described here are offered for example by the company MTS Sensor Technology GmbH & Co. KG (Germany), under the trade name Temposonics®.
  • each measurement bar 6 extends over only one rail element.
  • measurement bars 6 that extend over a plurality of rail elements.
  • a combination of measurement bars having different lengths is also conceivable.
  • the measurement bars which succeed one another in the longitudinal direction of the rails, are situated one after the other (i.e., without a lateral offset transverse to the longitudinal direction of the rails) without overlapping, and form a measurement path.
  • the non-overlapping arrangement of measurement bars 6 makes it possible to integrate them fully into rail elements 2 .
  • this arrangement also has the result that zones 20 are present between rail elements 2 in which a marking magnet 13 cannot be acquired. Because, however, two marking magnets 13 are provided on each vehicle 11 per measurement bar 6 , at a distance from one another that is greater than the length of zones 20 , measurement control device 17 can nonetheless acquire a vehicle from at least one measurement bar 6 if the vehicle is situated in the area between two rail elements 2 .
  • the measurement for example always takes place at the position of the front (in the travel direction of the vehicle) marking magnet, until the distance from the front marking magnet up to a front (in the travel direction) end of the measurement bar becomes less than a predetermined threshold value.
  • the threshold value has been undershot, the measurement takes place using the rear (in the direction of travel) marking magnet, until the front marking magnet reaches the measurement area of the next (in the direction of travel) measurement bar 6 .
  • the measurement of the position then takes place using the next measurement bar and the front marking magnet.
  • a marking magnet 13 is used for a measurement only when it is situated in a predetermined measurement area of one of the measurement bars. If the marking magnet 13 is not situated in the predetermined measurement area of one of the measurement bars, the second marking magnet, situated in front of or behind the respective marking magnet 13 , is used for the measurement. If both marking magnets, situated one after the other, are situated in the measurement area of a measurement bar (or of two different measurement bars), either both of the marking magnets or only one of the marking magnets can be used for the measurement.
  • marking magnets 13 are situated on both sides of each vehicle. As a rule, however, only a single measurement bar is integrated into rail elements 2 , so that only two of the four marking magnets are used. However, the two additional marking magnets have the advantage that the vehicles can be placed onto the rail system in both possible orientations. Moreover, as is described below, they enable reliable acquisition of the position of the vehicles even at switches.
  • a switch 2 a is shown in FIG. 6 . It has a first end 22 , a second end 23 a, and a third end 23 b, first end 22 being capable of being optionally connected to second or third end 23 a or 23 b. Lateral control magnets 24 , 25 , which interact with guide magnets 14 of the vehicles, steer the vehicles in one direction or the other.
  • two measurement bars 6 are integrated into the switch, of which each runs parallel to and close to an outer edge 26 , 27 of the switch; i.e., they are situated along the outer edges.
  • the measurement bars are situated laterally outside the stationary part (coils 8 ) of the drive device. At least one of the measurement bars 6 has a bend.
  • This arrangement makes it possible to follow the position of a vehicle in the area of switch 2 a continuously, independent of the path that it takes. In every case, one of the marking magnets is continuously in the area of a measurement bar 6 .
  • measurement bars 6 are situated in the interior of the U-shaped sections of guide rods 4 , which has the advantage that they are better shielded from magnetic fields of the drive mechanism.
  • guide magnets 14 are situated tangential to the measurement bars over the ends of the limbs of the U-shaped sections, which has the effect that their magnetic field lines in the sections are bundled, and the field is therefore very small in the area of the measurement bars.
  • marking magnets 13 are situated radially to measurement bars 6 , so that the field lines enter into the measurement bars, which results in the production of the above-mentioned ultrasound pulses. Due to the different arrangement of the marking and guide magnets 13 or 14 , it can thus be achieved that guide magnets 14 produce significantly smaller signals than do marking magnets 13 .
  • Measurement bars 6 can also be situated adjacent to guide rods 4 , and can run along these; in this case, guide rods 4 are advantageously situated between coils 8 and measurement bars 6 , so that measurement bars 6 are shielded as much as possible from the field of coils 8 . It is also conceivable to situate measurement bars 6 at a greater distance from guide rods 4 .
  • the measurement bars can also be integrated in the area of, or in, coils 8 . This is shown in FIG. 7 , in which measurement bar 6 is situated in a recess in laminated core 8 a of coils 8 .
  • the measurement bar is preferably also situated in a U-shaped section 4 a, so that disturbing magnetic fields are shielded.

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  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Transportation (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
US10/557,315 2003-05-20 2004-05-19 Rail Assembly, Rail Switch And A Transport Device Provided With A Magnetostrictive Sensor Abandoned US20080115372A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10322564.1 2003-05-20
CH9082003 2003-05-21
PCT/CH2004/000306 WO2004103792A1 (de) 2003-05-21 2004-05-19 Schienenanordnung, weiche und transportvorrichtung mit magnetostriktiven sensoren

Publications (1)

Publication Number Publication Date
US20080115372A1 true US20080115372A1 (en) 2008-05-22

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US10/557,315 Abandoned US20080115372A1 (en) 2003-05-20 2004-05-19 Rail Assembly, Rail Switch And A Transport Device Provided With A Magnetostrictive Sensor

Country Status (5)

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US (1) US20080115372A1 (ja)
JP (1) JP2007501159A (ja)
CN (1) CN1791527A (ja)
DE (1) DE112004000787A5 (ja)
WO (1) WO2004103792A1 (ja)

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US20090201012A1 (en) * 2006-07-06 2009-08-13 Siemens Aktiengesellschaft Device for Locating a Vehicle Tied to a Roadway
US20100129509A1 (en) * 2007-07-20 2010-05-27 Heribert Dierkes Natural product extraction
US20140263863A1 (en) * 2013-03-13 2014-09-18 Alexander Muller Non-Contact Method To Detect Model Railroad Turnout Points Position
US9950721B2 (en) * 2015-08-26 2018-04-24 Thales Canada Inc Guideway mounted vehicle localization system
US10246266B2 (en) 2017-03-21 2019-04-02 B&R Industrial Automation GmbH Method for controlling the normal force of a transport unit of a long stator linear motor
US10407246B2 (en) 2017-07-03 2019-09-10 B&R Industrial Automation GmbH Transport apparatus in the form of a long stator linear motor
US10554102B2 (en) 2016-05-31 2020-02-04 B&R Industrial Automation GmbH Method for operating a long stator linear motor
US10554111B2 (en) 2016-05-31 2020-02-04 B&R Industrial Automation GmbH Method for operating a long stator linear motor
US10594245B2 (en) 2017-08-21 2020-03-17 B&R Industrial Automation GmbH Controlling long-stator linear motor coils of a long-stator linear motor stator
US10622921B2 (en) 2015-06-23 2020-04-14 B&R Industrial Automation GmbH Method and long stator linear motor for transferring a transport unit at a transfer position
US20200180872A1 (en) * 2017-05-18 2020-06-11 Krones Ag Magnet switch for a transport system
US10978969B2 (en) 2018-06-14 2021-04-13 B&R Industrial Automation GmbH Short-circuit braking of an LLM
US11165372B2 (en) * 2017-09-13 2021-11-02 Rockwell Automation Technologies, Inc. Method and apparatus to characterize loads in a linear synchronous motor system
US11161701B2 (en) 2017-06-29 2021-11-02 B&R Industrial Automation GmbH Method for operating a transport apparatus in the form of a long stator linear motor
US11912508B2 (en) 2018-05-30 2024-02-27 B&R Industrial Automation GmbH Method for controlling a transport unit of a transport device in the form of a long-stator linear motor

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EP3489175B1 (de) * 2017-11-24 2020-02-26 B&R Industrial Automation GmbH Transporteinrichtung in form eines langstatorlinearmotors mit wendeabschnitt
EP3501878B1 (de) 2017-12-22 2022-07-13 B&R Industrial Automation GmbH Transporteinrichtung in form eines langstatorlinearmotors
IT201800004814A1 (it) 2018-04-24 2019-10-24 Stazione e metodo di controllo del circuito elettrico di sigarette elettroniche
CN109029228B (zh) * 2018-05-30 2021-01-05 中南大学 一种用于测量轨道车辆与钢轨相对偏移的系统及方法
EP3363751B1 (de) 2018-06-05 2020-04-22 B&R Industrial Automation GmbH Verfahren zur übergabe einer transporteinheit eines langstatorlinearmotors an einer übergabeposition
EP3661033A1 (de) 2018-11-27 2020-06-03 B&R Industrial Automation GmbH Transporteinrichtung in form eines langstatorlinearmotors
DE102019115179A1 (de) * 2019-06-05 2020-12-10 Krones Ag Vorrichtung zum Überwachen von Behältern und Verfahren zum Positionieren von Sensoren
CN116097557A (zh) 2020-09-03 2023-05-09 B&R工业自动化有限公司 用于操作直线电动机的方法
WO2023046646A1 (de) 2021-09-22 2023-03-30 B&R Industrial Automation GmbH Positioniereinheit
WO2023213701A1 (de) 2022-05-02 2023-11-09 B&R Industrial Automation GmbH Verfahren und vorrichtung zum überwachen des betriebs einer transporteinrichtung
JP7274658B1 (ja) 2022-09-30 2023-05-16 Dmg森精機株式会社 位置検出システムおよび移動体

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