WO2023025793A1 - Dispositif pour la transmission d'énergie et/ou de signaux et véhicule ferroviaire comportant un tel dispositif - Google Patents

Dispositif pour la transmission d'énergie et/ou de signaux et véhicule ferroviaire comportant un tel dispositif Download PDF

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Publication number
WO2023025793A1
WO2023025793A1 PCT/EP2022/073470 EP2022073470W WO2023025793A1 WO 2023025793 A1 WO2023025793 A1 WO 2023025793A1 EP 2022073470 W EP2022073470 W EP 2022073470W WO 2023025793 A1 WO2023025793 A1 WO 2023025793A1
Authority
WO
WIPO (PCT)
Prior art keywords
roller
axle
energy
rail vehicle
roller bearing
Prior art date
Application number
PCT/EP2022/073470
Other languages
German (de)
English (en)
Inventor
Sven Worm
Reiner Greber
Thomas Keller
Original Assignee
Montratec Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Montratec Gmbh filed Critical Montratec Gmbh
Publication of WO2023025793A1 publication Critical patent/WO2023025793A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
    • B60L5/38—Current collectors for power supply lines of electrically-propelled vehicles for collecting current from conductor rails
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
    • B60L5/04—Current collectors for power supply lines of electrically-propelled vehicles using rollers or sliding shoes in contact with trolley wire
    • B60L5/06—Structure of the rollers or their carrying means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
    • F16C13/02—Bearings
    • F16C13/022—Bearings supporting a hollow roll mantle rotating with respect to a yoke or axle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/24—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/32—Balls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/34—Rollers; Needles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
    • F16C41/002—Conductive elements, e.g. to prevent static electricity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00—Type of vehicles
    • B60L2200/26—Rail vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2202/00—Solid materials defined by their properties
    • F16C2202/30—Electric properties; Magnetic properties
    • F16C2202/32—Conductivity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2204/00—Metallic materials; Alloys
    • F16C2204/02—Noble metals
    • F16C2204/04—Noble metals based on silver
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2204/00—Metallic materials; Alloys
    • F16C2204/10—Alloys based on copper
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2208/00—Plastics; Synthetic resins, e.g. rubbers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2220/00—Shaping
    • F16C2220/20—Shaping by sintering pulverised material, e.g. powder metallurgy

Definitions

  • Device for energy and/or signal transmission and rail vehicle comprising such a device
  • the invention relates to a device for the transmission of energy and/or signals between a conductor rail and a rail vehicle that can be moved relative thereto, and a rail vehicle comprising such a device.
  • EP 0618 123 A1 discloses a rail vehicle with rollers and a direct-current motor arranged on the rail vehicle, the rollers being drivable by means of the direct-current motor.
  • the motor is connected to current collectors in the form of brushes, which are in a sliding connection with busbars on the rail.
  • a device for the transmission of energy and/or signals between a conductor rail and a rail vehicle that can be moved relative thereto comprising a roller, the roller being mounted so as to be rotatable about an axis.
  • the device comprises a roller bearing arranged between the roller and the axle, the roller being made of an electrically conductive material and energy and/or signals being transmitted via roller bodies of the roller bearing.
  • energy and/or signals are not transmitted via a sliding contact, but via a rolling contact on the rolling elements.
  • roller bearing can be suitably selected by the specialist depending on the application.
  • the roller bearing is designed as a ball bearing.
  • a cylindrical roller bearing is provided.
  • the roller bearing is configured as a single row, in other configurations there are multiple row roller bearings.
  • the roller bearing has bearing rings, in particular an outer ring connected to the roller and an inner ring connected to the axle.
  • the roller and/or the axle serve as a bearing ring.
  • the axis has a rotationally symmetrical cross section.
  • the roller bearing comprises an inner ring connected to the axle, with a core of the inner ring and the axle having mutually complementary, rotationally symmetrical or non-rotationally symmetrical cross sections.
  • the roller bearing comprises an inner ring, with a core of the inner ring and the axle having cross-sections that are not complementary to one another, for example cross-sections of different diameters, and with an intermediate element functioning as an adapter, in particular a bushing, being provided between the inner ring and the axle.
  • the roller is made of an electrically conductive material.
  • the electrically conductive material can be selected by a person skilled in the art.
  • the electrically conductive material is selected from the group comprising copper and copper alloys, sintered metals with and without additives, stainless steel, silver and/or coated plastics with and without additives.
  • the device includes a suspension for the axle with an axle holder.
  • the axis is also made of an electrically conductive material, with a line for energy and/or signal transmission being attached to the axis.
  • the line is welded, soldered, glued and/or pressed to the axle.
  • a detachable connection is provided.
  • the axle is made of a non-conductive material, with the line being connected to an inner ring of the roller bearing and/or to an inner ring connected to the axle of the roller bearing is attached to an intermediate element that is conductively connected, in particular to a bushing arranged between the bearing ring and the axle.
  • the line is embedded in the axle holder of the suspension of the axle.
  • an axle holder made of a non-conductive material is provided, with an uncoated or cast-in line being provided in one embodiment.
  • a termination point for a pantograph is provided on an outside of the axle holder.
  • the suspension comprises a force element acting on the axle holder and forcing the axle holder in the direction of a free end, in particular a spring element.
  • An end pointing in the direction of a counter-element during use is referred to as the free end of the axle holder.
  • the roller can thus be forced during use onto a counter-element on which the roller rolls. This prevents the roller from lifting off the counter element and/or a loss of contact between the rolling elements and the bearing rings or--if the roller or the axle acts as a bearing ring--between the rolling elements and the roller and the axle.
  • the prestress applied to the device during use by means of the force element thus prevents an interruption in the energy and/or signal transmission due to a short-term loss of contact.
  • the suspension comprises more than one force element.
  • a current-conducting medium in particular a copper paste, is provided in the roller bearing.
  • sparking due to a short-term loss of contact in the roller bearing can be prevented.
  • a radially preloaded roller bearing is provided between the axle and the roller.
  • the preload in the radial direction is selected in such a way that a loss of contact between the rolling elements and the bearing rings is prevented during use.
  • the roller bearing has a seal made of a non-conductive material in the axial direction.
  • a rail vehicle comprising a device for energy and/or signal transmission with a roller made of an electrically conductive material, an axle and a roller bearing arranged between the roller and the axle, the roller being rotatable about the axle by means of the roller bearing is stored, and wherein an energy and / or signal transmission takes place via rolling elements of the rolling bearing.
  • the roller rolls off, for example, on a conductor rail which is provided on a rail for the rail vehicle.
  • the terms “a”, “an”, “an” etc. are used in connection with the application only as indefinite articles and not as measure words.
  • the rail vehicle has two devices which can be connected to two phases of a power supply.
  • the device is used for signal transmission, with only one device being provided on the rail vehicle.
  • the device is arranged in pairs for an uninterrupted transmission of energy or signals.
  • the rail vehicle is a driverless rail vehicle.
  • FIG. 1 shows a schematic plan view of a system comprising a stationary element and an element that can be moved relative thereto, with four devices for energy or signal transmission and
  • FIG. 2 shows a schematic of a section of the system according to FIG. 1 in a partially cut-away representation.
  • FIG. 1 schematically shows a plan view of a system 1 comprising a stationary element 2 and an element 3 movable relative thereto, with four devices 4 for energy or signal transmission between the stationary element 2 and the element 3 relative thereto movable element 3, of the four devices 4 in Fig. 1 only two devices are partially or completely covered and therefore not visible.
  • FIG. 2 schematically shows a section of the system 1 according to FIG. 1 in a partially cut-out illustration.
  • the fixed element 2 shown is a conductor rail and the element 3 which can be moved relative thereto is a rail vehicle which is only shown in sections and which can be moved in the longitudinal direction of the conductor rail—as indicated schematically by a double arrow. Rollers, not shown in the figures, are provided for moving the rail vehicle along the busbar.
  • the devices 4 for energy transmission to the movable element 3 are each arranged in pairs, with two devices 4 offset in the direction of movement of the movable element 3 being connected to a pole 51 , 52 of a connection socket 5 .
  • the devices 4 each serve to transmit energy between the stationary element 2 designed as a busbar and the connection socket 5 on the second element 3, which can be moved relative to the busbar and is designed as a rail vehicle, with the paired arrangement ensuring uninterrupted transmission of energy to the poles 51, 52 of the connection socket 5 is ensured when cornering and/or at switches of the rail vehicle.
  • only two devices 4 are provided for energy transmission, with an arrangement in pairs being dispensed with.
  • the devices 4 each comprise a roller 40 made of an electrically conductive material, an axle 42 and a roller bearing 44 (see FIG. 2) arranged between the roller 40 and the axle 42, the roller 40 being rotatably mounted about the axle 42 by means of the roller bearing 44 and an energy and/or signal transmission takes place from the fixed element 2 to the movable element 3 via rolling bodies 444 of the rolling bearing 44 .
  • the roller bearing 44 shown comprises a bearing ring 440 connected to the roller 40, also referred to as the outer ring, and a bearing ring 442 connected to the axle 42, also referred to as the inner ring.
  • a bushing 43 is provided between the axle 42 and the bearing ring 442 in the exemplary embodiment shown.
  • the axle 42 has a diameter which is smaller than an inner diameter of the bearing ring 442 , with the bushing 43 serving as an adapter between the bearing ring 442 and the axle 42 .
  • an inside diameter of the bearing ring 442 is approximately equal to an outside diameter of the axle 42, so that a bushing 43 can be omitted.
  • the rolling elements 444 shown schematically are designed as balls in the illustrated embodiment. Other rolling bodies are provided in other configurations.
  • roller bearings 44 each have a seal 446 made of a non-conductive material on their end faces.
  • the device 4 further includes a suspension 46 by means of which the axle 42 is supported on a housing 30 .
  • the suspension comprises an axle holder 460 which is movably arranged on a guide rod 32 (cf. FIG. 2) which is fixedly connected to the housing 30 .
  • the guide rod 32 extends transversely, in particular perpendicularly, to a direction of movement of the movable element 3, so that the axle holder 460 with the axis 42 and thus the roller 40 mounted on the axle 42 can be adjusted transversely, in particular perpendicularly, to a direction of movement of the movable element 3 .
  • a maximum displacement path is limited by stops 300, 302 on the housing 30.
  • the suspension 46 shown also includes a force element acting on the axle holder 460, which is designed as a spring element 462 in the exemplary embodiment shown, the axle holder 460 being forced in the direction of its free end by means of the spring element 462. This forces the axle holder 460 and therefore the roller 40 towards the fixed element 2 in use, thus preventing loss of contact between the roller 40 and the fixed element 2 and thus an interruption in the transmission of energy and/or signals due to a momentary loss of contact.
  • a force element acting on the axle holder 460 which is designed as a spring element 462 in the exemplary embodiment shown, the axle holder 460 being forced in the direction of its free end by means of the spring element 462. This forces the axle holder 460 and therefore the roller 40 towards the fixed element 2 in use, thus preventing loss of contact between the roller 40 and the fixed element 2 and thus an interruption in the transmission of energy and/or signals due to a momentary loss of contact.
  • Fig. 1 schematically shows the axle holder 460 of the two devices 4 connected to a pole 51 in two maximum positions, with the axle holder 460 shown on the left in Fig. 1 being arranged in a first maximum position in which the axle holder 460 counteracts a restoring force of the spring element 462 is moved towards the housing 30 and thus away from the fixed element 2.
  • Axle holder 460 shown on the right in FIG. A distance between the stationary element 2 and the element 3 that can be moved relative thereto is exaggerated for better clarity.
  • a spacing in embodiments of the system 1 is chosen such that when the roller 40 contacts the fixed member 2, the axle holder 460 is located between the first and second maximum positions.
  • the devices 4 are arranged in pairs, with two devices 4 each being connected to a pole 51 , 52 of a connection socket 5 .
  • the axle brackets 460 are made of a non-conductive, insulating material.
  • the devices 4 each comprise lines 48 which are embedded in the axle holders 460 .
  • the lines 48 are electrically conductively and mechanically connected to the axles 42 .
  • Connections for lines 50 to the poles 51, 52 are provided on the outside of the axle holder 460.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)

Abstract

L'invention se rapporte à un dispositif (4) pour la transmission d'énergie et/ou de signaux entre une barre omnibus (2) et un véhicule ferroviaire qui est mobile par rapport à celle-ci, comprenant un rouleau (40) d'un matériau conducteur de courant, le rouleau (40) étant monté de manière à pouvoir tourner autour d'un axe (42) et un palier à roulement (44) étant agencé entre le rouleau (40) et l'axe (42) et une transmission d'énergie et/ou de signaux étant réalisée au moyen des corps de roulement (444) du palier à roulement (44). L'invention se rapporte en outre à un véhicule ferroviaire comprenant un tel dispositif (4).
PCT/EP2022/073470 2021-08-24 2022-08-23 Dispositif pour la transmission d'énergie et/ou de signaux et véhicule ferroviaire comportant un tel dispositif WO2023025793A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021209292.6A DE102021209292A1 (de) 2021-08-24 2021-08-24 Vorrichtung zur Energie- und/oder Signalübertragung und Schienenfahrzeug umfassend eine derartige Vorrichtung
DE102021209292.6 2021-08-24

Publications (1)

Publication Number Publication Date
WO2023025793A1 true WO2023025793A1 (fr) 2023-03-02

Family

ID=83283288

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2022/073470 WO2023025793A1 (fr) 2021-08-24 2022-08-23 Dispositif pour la transmission d'énergie et/ou de signaux et véhicule ferroviaire comportant un tel dispositif

Country Status (3)

Country Link
DE (1) DE102021209292A1 (fr)
TW (1) TW202316756A (fr)
WO (1) WO2023025793A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1570933A (en) * 1924-09-05 1926-01-26 Cleveland Crane Eng Current collector
US1821425A (en) * 1930-02-24 1931-09-01 Jeffrey Mfg Co Trolley harp
EP0618123A1 (fr) 1993-03-30 1994-10-05 Montech AG Chariot pour transporter des pièces d'oeuvre
DE19506670A1 (de) 1995-02-25 1996-08-29 Montech Ag Laufwagen zum Transport von Werkstücken
WO2009052798A1 (fr) * 2007-10-26 2009-04-30 Schaeffler Kg Cage pour un roulement
DE102013217980A1 (de) * 2013-09-09 2015-03-26 Schaeffler Technologies Gmbh & Co. Kg Wälzlager
CN108454414A (zh) * 2017-02-18 2018-08-28 天津益昌电气设备股份有限公司 一种新型滚动式三轨受流器

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH93403A (fr) 1919-02-14 1922-03-16 Pestarini Giuseppe Balai pour machines électriques.
DE4307629A1 (de) 1993-03-11 1994-09-15 Rene Goetze Kugellager System zur Herabsetzung der Reibung am Kollektor (Elektromotor)
US6714028B2 (en) 2001-11-14 2004-03-30 Electro Scientific Industries, Inc. Roller contact with conductive brushes
DE102010009114A1 (de) 2010-02-24 2011-08-25 Kau, Katrin, 26427 Vorrichtung zum Übertragen von Strom, Daten oder Signalen von einem feststehenden Gegenstand auf einen drehenden Gegenstand oder umgekehrt

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1570933A (en) * 1924-09-05 1926-01-26 Cleveland Crane Eng Current collector
US1821425A (en) * 1930-02-24 1931-09-01 Jeffrey Mfg Co Trolley harp
EP0618123A1 (fr) 1993-03-30 1994-10-05 Montech AG Chariot pour transporter des pièces d'oeuvre
DE19506670A1 (de) 1995-02-25 1996-08-29 Montech Ag Laufwagen zum Transport von Werkstücken
WO2009052798A1 (fr) * 2007-10-26 2009-04-30 Schaeffler Kg Cage pour un roulement
DE102013217980A1 (de) * 2013-09-09 2015-03-26 Schaeffler Technologies Gmbh & Co. Kg Wälzlager
CN108454414A (zh) * 2017-02-18 2018-08-28 天津益昌电气设备股份有限公司 一种新型滚动式三轨受流器

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Publication number Publication date
DE102021209292A1 (de) 2023-03-02
TW202316756A (zh) 2023-04-16

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