US3786204A - Balanced support mechanism for a linearly movably current collecting head - Google Patents

Balanced support mechanism for a linearly movably current collecting head Download PDF

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Publication number
US3786204A
US3786204A US00167912A US3786204DA US3786204A US 3786204 A US3786204 A US 3786204A US 00167912 A US00167912 A US 00167912A US 3786204D A US3786204D A US 3786204DA US 3786204 A US3786204 A US 3786204A
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United States
Prior art keywords
vehicle
counterweight
collector head
pivot axis
head
Prior art date
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Expired - Lifetime
Application number
US00167912A
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English (en)
Inventor
D Laurent
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Merlin Gerin SA
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Merlin Gerin SA
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Publication date
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    • 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
    • B60L5/08—Structure of the sliding shoes or their carrying means
    • 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
    • B60L5/40—Current collectors for power supply lines of electrically-propelled vehicles for collecting current from lines in slotted conduits
    • 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

Definitions

  • ABSTRACT A balanced support mechanism for a collector head guided in a longitudinal current supplying passageway which extends parallelly to the trackway of a highspeed vehicle.
  • the mechanism is pivotally attached to the vehicle and comprises a counterweight tending to maintain the collector head in neutral equilibrium.
  • the counterweight is sustained by a pantograph or by a telescoping arrangement.
  • SHEET 2 0F 4 PATENIEDJAK 15 m4 3786204 saw u or 4 BALANCED SUPPORT MECHANISM FOR A LINEARLY MOVABLY CURRENT COLLECTING HEAD
  • the invention relates to a balanced currentcollecting head support mechanism for use with a highspeed vehicle movable along a trackway.
  • the collector head is guided in a passageway extending parallelly to the trackway and comprising a plurality of current supplying conductor rails, generally three to define a three-phase supply system, which are symmetrically disposed around the collector head.
  • the collector head comprises for each rail a row of contact shoes which are resiliently biased against the rail so that the collector head is guided in the passageway by the conductor rails.
  • the support mechanism connecting the collector head to the vehicle has an arm depending from the vehicle and an end of which is swingably attached to the center of inertia (center of gravity, of mass) of the collector head.
  • the arm is connected to a balanced support mechanism carried by the vehicle and permitting the collector head toexecute small movements around its mean position with respect to the vehicle, such movements resulting for instance from irregularities of the trackway and of the trajectory of the conductor rails or from transversal inertia movements of the vehicle and of the collector head.
  • the support system described in the above mentioned application comprises a relatively great number of jointed bars and it is an object of the present invention to improve this prior art support system with respect to simplicity of construction and of operation, bulkiness, cost price and liability.
  • Still another object of the invention is to provide a balanced support mechanism of the kind mentioned having a counterweight sustained in a very simple manner.
  • a further object of the invention is to provide an advantageous arrangement of the current supplying conductor laterally of the vehicle permitting to connect the collector head to the vehicle by a short, substantially horizontal arm.
  • FIG. I is a schematic view, in perspective, of a vehicle equipped with a current collector head in accordance with the invention, a part of the collector track being broken away in order to show the collector head.
  • FIG. 2 is a view similar to that of FIG. 1 showing a detail of the latter, a part of the covering being broken away.
  • FIG. 3 shows schematically the diagram of the forces for two different positions of the articulated system.
  • FIG. 4 is a sectional view ,of another embodiment of the invention.
  • a vehicle 10 adapted to move over a track 12 formed in known manner of an inverted T-beam is supported by a fluid cushion formed between the track 12 and, the base of the vehicle 10 and is propelled by an electric linear motor (not shown).
  • an electric current distribution system 14 consisting of three conductive rails 16 arranged in known manner along the edges of a right prism with triangular base.
  • a current collector head 18 Within the passageway defined by the rails 16 there can slide a current collector head 18 which bears brushes 20 which are elastically urged into contact with the rails 16 so as to collect the electric current and mechanically to guide the head 18 upon its displacement along the track.
  • the vehicle 10 is guided and supported on the track 12 by fluid cushions, the thickness of which is generally so that the relative position of the vehicle 10 with respect to the head 18, guided by the track 14, varies during the displacement of the vehicle.
  • the connection 22 between the collector head 18 and the vehicle 10 is adapted to compensate for said variations in positioning while being capable of transmitting only the traction force to the head 18.
  • the mechanical connection 22 is of course supplemented by an electrical connection (not shown) adapted to transmit to the vehicle 10 the current which has been collected.
  • FIGS. 2 and 3 show a first embodiment of the invention
  • the collector head is supported by an arm 22 whose free end bears a ball 24 which is housed in a corresponding socket of the collector head 18 located at the center of gravity (of mass; inertia) of the latter.
  • the ball 24 permits free pivoting in all directions of the head 18 with respect to the support arm 22, the amplitude of this pivoting being of course limited by the structural characteristics of the collector head.
  • the arm 22 consists of an extension of one of the sides of a pantograph mechanism 25 comprising two parallel long sides 26, 28 pivotally connected to two parallel short sides 30, 32.
  • the side 32 has an extension 34 hearing a counterweight 36 at its free end.
  • connection 38 of the sides 28, 30 opposite the sides 26, 32 respectively bearing the collector head and the counter weight consists of a transverse pivot axis 40 rigidly fastened to the vehicle 10 (see FIG. 4).
  • the photograph system 25 is so arranged that the ball 24, the transverse axis 38, 40 and the center of gravity of the counterweight 36 are aligned. In practice, it is advisable also to take into account the weight of the different connecting rods, but for reasons of simplicity of description, this weight is assumed to be negligible.
  • the ratio of the distance c, from the axis 38 to the center of gravity of counterweight 36 and 0 from the axis 38 to the ball 24 is inversely proportional to the ratio of the masses of the counterweight 36 and the collector head 18.
  • a variation in the distance c of the collector head from the vehicle is permitted by deformation of the pantograph 25.
  • One of the well-known properties of this type of articulated parallelogram, generally known as a pantograph, is that it retains the ratio of the lengths c, to c during their deformation.
  • the mass M of the counter weight 36 is selected in such a manner as to balance the mass N of the collector head 18 and it can easily be seen that this balancing is retained in any position of the pantograph 25, the relationship M c, N applying at all time.
  • the arm 22 is preferably shaped in the form of a wing profile so as to decrease drag resistance at the high speeds reached by the vehicle and the transverse shaft 40 as well as the parts of the pantograph 25 are housed within a recess 42 provided in the side wall of the vehicle 10.
  • a removable cover or panel 44 assures continuityof the side wall of the vehicle permitting the passage only of the arm 22 which is the only part of the support device outside the vehicle. This particular construction makes it possible to protect fragile parts such as the pivot connections of the articulated system.
  • the levers 26, 28 are advantageously of the triangulated type, so as to impart substantial rigidity to the assembly and the levers 30, 32 are formed of pairs of small connecting rods which surround the triangulated levers 26, 28.
  • the collector head 18 is held in neutral equilibrium whatever its position with respect to the vehicle 10.
  • FIG. 3 The position A shown in FIG. 3 corresponds to a high position of the vehicle 10 with respect to the collector head 18. with lateral displacement towards the left.
  • the position B is the opposite extreme position, that is to say the low position of the vehicle with lateral displacement towards the right and it is obvious that the vehicle can assume any intermediate position.
  • FIG. 4 shows a variant embodiment of the invention in which the collector head 18 is supported by the arm 22 which is extended by a rod 40 which is slidably mounted within a tubular support 48.
  • the end 50 of the tubular support 48 is mounted for rotation on trunnions 52, 54 in bearings 56 and 58 respectively which are rigidly connected with the vehicle 10.
  • the coaxial trunnions 52, 54 extend parallel to the general direction of the tracks in the manner described above so as to permit a fluttering movement of the arm 22 in a plane perpendicular to said direction of the tracks.
  • the trunnions 52, 54 correspond to the axis of articulation 40 of the variant shown in FIGS. 1 and 2.
  • the rod 46 is advantageously cylindrical and in known manner, a toggle joint 60, one of the legs of which is articulated to the end 50 and the other to the rod 46 prevents any movement of rotation of the rod around its axis.
  • the assembly constitutes a telescopic device articulated by the trunnions 52, 54.
  • a counterweight 62 is slidably mounted on the outer part of the tubular support 48 and is mechanically connected to the rod 40 in such a manner that any displacement of the latter with respect to the support 48 imposes a corresponding displacement in opposite direction on the counterweight 62. In the example shown in FIG.
  • the mass of the counterweight 62 is equal to that of the collector head 18 and the assembly is arranged in such a manner that the collector head and the counterweight are at all times in symmetrical positions with resppct to the axis defined by the trunnions 52, 54.
  • the assembly is substantially balanced for any position of the telescopic device, the variations, due to the unbalanced mass of the arm 22, being practically negligible.
  • the transmission of movement between the rod 46 and the counterweight 62 can be effected in any manner well-known to those skilled in the art, and by way of example a connecting system by notched belt has been shown schematically in FIG. 4.
  • the tubular support 48 has two grooves extending along two generatrices, an endless belt in the form of a notched belt 64, 66 being housed in each of said grooves.
  • Each belt 64, 66 is stretched between two end reversing pulleys 68, 68' and 70, 70', the two strands of the belt extending parallel from the outer and inner surfaces, respectively, of the tubular support 48.
  • the counterweight 62 is rigidly connected with the outer strands of each of the belts 64, 66 by fasteners 72, the rod 46 being connected to the inner strands of each of the belts by fasteners 74. It is easy to see that the displacement of the collector head 18 in the direction indicated by the arrow in FIG. 4 causes a movement of the lower strand of the belts 64, 66 in the direction indicated by the arrow, the upper strands moving obviously in opposite direction and driving, via the fasteners 72, the counterweight 62 along in opposite direction.
  • the invention is of course in no way limited to a device employing a counterweight of the same mass as the collector head 18 and it is clear that in the case of a counterweight having a mass different of that of the collector head it is necessary to provide a gearing up or down of the sliding movements by any suitable system, for instance by gearwheels, so as to maintain the desired balance.
  • the sliding support system shown in FIG. 4 has been more particularly described in a horizontal mounting but such a system is also suitable for oblique for vertical mounting in which the shaft 52, 54 is supported by a side tin of the vehicle 10.
  • the assembly is obviously streamlined in a manner known per se in order to limit the drag at the high speeds reached by the vehicle.
  • said linkage means comprise pantograph means, said rod means being integral with a first bar of said pantograph means, said counterweight being sustained by a second bar of said pantograph means pivotally connected to said first bar.
  • said guide means comprising a tubular guiding arm pivotally mounted on said pivot axis and in telescoping relationship with said rod means and said counterweight.
  • said linkage means comprising endless flexible belt means having a first side secured to said counterweight and a second side engaging said rod means.
  • a vehicle comprising a mechanism according to claim 1, said rod means comprising an arm extending laterally from said vehicle to support said collector head.
  • An electrical distribution and current-collecting system for a vehicle guided along a trackway comprising three equidistant triangularly disposed current supplying conductor rails extending parallelly to said trackway and defining a passageway for a collector head laterally of said vehicle, a collector head having a longitudinal row of contact shoes for each conductor rail adapted for sliding contact therewith within said passageway, a support arm extending substantially horizontally from said vehicle and having an end swingably connected to said collector head substantially in the center of inertia thereof, the opposed end portion of said arm being connected to a balanced support mechanism carried by said vehicle and tending to maintain said collector head in neutral equilibrium within said passageway.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)
US00167912A 1971-05-11 1971-08-02 Balanced support mechanism for a linearly movably current collecting head Expired - Lifetime US3786204A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR717117071A FR2137032B1 (fr) 1971-05-11 1971-05-11

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FR (1) FR2137032B1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3880264A (en) * 1971-03-05 1975-04-29 Alden Self Transit Syst Power system
US4375193A (en) * 1980-05-29 1983-03-01 Universal Mobility, Inc. Monorail guideway assembly
US4464546A (en) * 1981-11-23 1984-08-07 Westinghouse Electric Corp. Power collection apparatus for a vehicle
US4572929A (en) * 1982-01-29 1986-02-25 Siemens Aktiengesellschaft Assembly for the transmission of electrical energy to vehicles
US20110139561A1 (en) * 2009-12-10 2011-06-16 Schunk Bahn- Und Industrietechnik Gmbh Pressing-on device for a current collector and method for energy transmission
WO2011157325A3 (fr) * 2010-06-19 2013-01-24 Audi Ag Système de transport pour une ligne de montage
US20130081915A1 (en) * 2011-09-29 2013-04-04 Martin Sommer Pressure Plate Assembly And Method For Power Transmission
US20140305760A1 (en) * 2011-03-31 2014-10-16 Conductix-Wampfler Gmbh Current Collector System, Crane System and Method for Delivering a Current Collector Trolley to a Busbar
CN110203085A (zh) * 2018-02-06 2019-09-06 比亚迪股份有限公司 轨道车辆的充电槽组件及轨道车辆的充电装置
US10500978B2 (en) * 2015-06-08 2019-12-10 Alstom Transport Technologies Assembly consisting of an electric vehicle and a system for stationary charging by conduction; associated system, facility, vehicle and method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2700705A (en) * 1949-09-27 1955-01-25 Cleveland Crane Eng Electrical duct and trolley collector

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2700705A (en) * 1949-09-27 1955-01-25 Cleveland Crane Eng Electrical duct and trolley collector

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3880264A (en) * 1971-03-05 1975-04-29 Alden Self Transit Syst Power system
US4375193A (en) * 1980-05-29 1983-03-01 Universal Mobility, Inc. Monorail guideway assembly
US4464546A (en) * 1981-11-23 1984-08-07 Westinghouse Electric Corp. Power collection apparatus for a vehicle
US4572929A (en) * 1982-01-29 1986-02-25 Siemens Aktiengesellschaft Assembly for the transmission of electrical energy to vehicles
US20110139561A1 (en) * 2009-12-10 2011-06-16 Schunk Bahn- Und Industrietechnik Gmbh Pressing-on device for a current collector and method for energy transmission
US8348035B2 (en) * 2009-12-10 2013-01-08 Schunk Bahn- Und Industrietechnik Gmbh Pressing-on device for a current collector and method for energy transmission
WO2011157325A3 (fr) * 2010-06-19 2013-01-24 Audi Ag Système de transport pour une ligne de montage
US20170326988A1 (en) * 2011-03-31 2017-11-16 Conductix-Wampfler Gmbh Current collector system, crane system and method for delivering a current collector trolley to a busbar
US10717359B2 (en) * 2011-03-31 2020-07-21 Conductix-Wampfler Gmbh Current collector system, crane system and method for delivering a current collector trolley to a busbar
US20140305760A1 (en) * 2011-03-31 2014-10-16 Conductix-Wampfler Gmbh Current Collector System, Crane System and Method for Delivering a Current Collector Trolley to a Busbar
US9669715B2 (en) * 2011-03-31 2017-06-06 Conductix-Wampfler Gmbh Current collector system, crane system and method for delivering a current collector trolley to a busbar
US8839921B2 (en) * 2011-09-29 2014-09-23 Schunk Bahn-Und Industrietechnik Gmbh Pressure plate assembly and method for power transmission
US20130081915A1 (en) * 2011-09-29 2013-04-04 Martin Sommer Pressure Plate Assembly And Method For Power Transmission
US10500978B2 (en) * 2015-06-08 2019-12-10 Alstom Transport Technologies Assembly consisting of an electric vehicle and a system for stationary charging by conduction; associated system, facility, vehicle and method
CN110203085A (zh) * 2018-02-06 2019-09-06 比亚迪股份有限公司 轨道车辆的充电槽组件及轨道车辆的充电装置
CN110203085B (zh) * 2018-02-06 2022-03-18 比亚迪股份有限公司 轨道车辆的充电槽组件及轨道车辆的充电装置

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Publication number Publication date
FR2137032B1 (fr) 1973-05-11
FR2137032A1 (fr) 1972-12-29

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