EP3594083A1 - Betätigungsvorrichtung für eisenbahnweichen - Google Patents

Betätigungsvorrichtung für eisenbahnweichen Download PDF

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Publication number
EP3594083A1
EP3594083A1 EP19184113.9A EP19184113A EP3594083A1 EP 3594083 A1 EP3594083 A1 EP 3594083A1 EP 19184113 A EP19184113 A EP 19184113A EP 3594083 A1 EP3594083 A1 EP 3594083A1
Authority
EP
European Patent Office
Prior art keywords
actuation
translation
switch
push element
railroad switch
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
Application number
EP19184113.9A
Other languages
English (en)
French (fr)
Inventor
Alessandro BECCARISI
Maurizio Biagiotti
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.)
Silsud Srl
Original Assignee
Silsud Srl
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 Silsud Srl filed Critical Silsud Srl
Publication of EP3594083A1 publication Critical patent/EP3594083A1/de
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
    • B61L5/10—Locking mechanisms for points; Means for indicating the setting of points
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
    • B61L5/02—Mechanical devices for operating points or scotch-blocks, e.g. local manual control

Definitions

  • the present invention relates to railway technical field and in particular relates to an actuation device for actuating the movement of the switch points of a railroad switch.
  • the switch machines of the railroad switches generally provide at least one actuator, which moves the switch points of the railroad switch between two limit positions. More precisely, at the above mentioned limit positions, a switch point is close to the respective rail stock and is, therefore, called closed switch point, whilst the other switch point is arranged in an open position relative to the respective rail stock and is, therefore, called open switch point.
  • the opposite limit position instead, the opposite situation occurs, and, therefore, the switch point that in the previous limit position was the closed switch point, is positioned at a predetermined distance from the respective rail stock and therefore becomes the open switch point, whilst the switch point that was previously arranged in the open position is arranged close to the respective rail stock and, therefore, become the closed switch point.
  • the movement from a limit position to the other one is, normally, caused by an actuator having a predetermined actuation stroke along an actuation direction.
  • a known type of device for manually actuating a railroad switch provides a frustum-pyramidal body at the top of which a big arm is provided ending with a handle portion and a counterweight, and can be caused to rotate generally for 180° in one direction, or in the opposite direction in order to position the railroad switch in the desired position.
  • the arm is rigidly connected to a leverage that is fixed to the switch points of the railroad switch.
  • this kind of actuation device is installed where the rolling stock is arranged, or however, in the stretches of the railroad line where the switch machines with remote control are not installed.
  • the railroad switch is manually actuated and, then, is brought again into the previous position by rotating the device in the opposite direction.
  • the devices for manually displacing the railroad switches in particular because of the presence of the counterweight, but also because of the high encumbrance of the actuation lever, are not easy to be actuated, and, particularly, are not able to satisfy the necessary safety conditions for the operators who have to actuate the same thus exposing them to the risk of being injured.
  • an actuation mechanism for actuating the switch points of a railroad switch comprising a control group of the actuator which actuates two operating half-bars, each of which is connected to a switch point through a device for setting and a manual command connected to the actuator control group.
  • the actuation of the operating half-bars by the actuator command group is carried out by rotary cam-drive devices each of which associated to a half-bar.
  • the device for setting the switch points is a device, which is independent from the operating half-bars and is controlled by the actuator control group.
  • an object of the present invention to provide an actuation device of a railroad switch that is able to overcome the above mentioned drawbacks of the actuation devices of prior art.
  • an object of the present invention to provide an actuation device of a railroad switch that is highly efficient and reliable and that is, at the same time, able to assure the safety of the operator who has to operate the railroad switch.
  • a device for manually actuating a railroad switch, said device comprising:
  • the technical solution according to the invention allows to provide a manual actuation device of a railroad switch that is able to assure the necessary safety conditions of the operator who has to operates the same, besides of considerably simplifying, with respect to the prior art solutions, the positioning of the railroad switch in one of the working positions, i.e. in the normal position, or in the opposite direction.
  • the actuation device can be directed both to railroad switches of trailable type, and to railroad switches of non-trailable type. As described in detail in the following, in fact, it will be sufficient to choose a geometry of the actuation device, or another one, in order to satisfy the different needs.
  • the actuation member in particular the crank element, can be engaged to the displacement group through an engagement device configured in such a way to engage the actuation member to the displacement group only at the first working configuration and, instead, to disengage the same at the second working configuration.
  • a device 1 for manually actuating a railroad switch 100 is diagrammatically shown.
  • the device 1 provides an operating tie-rod 20 configured to translate along a translation direction 120 in a first movement direction ( figures 1 and 2 ), or in a second movement direction opposite to the first one ( figures 3 and 4 ), to displace a first and a second switch points 101 and 102 between two limit positions.
  • the first switch point 101 is close to a respective rail stock 111, and the second switch point 102 is arranged in an open position relative to the respective rail stock 112 ( figure 2 ), instead, at the second limit position, the first switch point 101 is arranged in an open position relative to the respective rail stock 111, and the second switch point 102 is close to the respective rail stock 112 ( figure 4 ).
  • the actuation device 1, according to the invention furthermore, comprises a displacement group 50 configured to cause the above mentioned translation of the operating tie-rod 20 along the translation direction 120 in the first, or in the second movement direction.
  • the displacement group 50 is actuated by a user by acting on an actuation member 55.
  • the displacement group 50 comprises a push element 40 rotatably engaged at a first end portion 41, in particular to a containment body 200 (see for example figure 2 ), in such a way to be able to rotate about a first rotation axis 140 orthogonal to the translation direction 120.
  • the push element 40 for example an elastic element 45, is configured to move from a first working configuration ( figure 5 ) in which is arranged to exert, at a second end portion 42 opposite to the first, a pushing force, which opposes the above mentioned translation of the operating tie-rod 20 from the limit position, to an intermediate position, and a second working configuration ( figure 6 ) at which the push element 40 is, instead, arranged to exert a pushing force helping the above mentioned translation of the operating tie-rod 20 from the intermediate position of figure 5 to the other limit position ( figure 6 ).
  • the actuation device 1 furthermore provides a movement transmission group 60 operatively connected to the actuation member 55 and the push element 40.
  • the movement transmission group 60 is configured to cause the above mentioned rotation of the push element 40 about the first rotation axis 140 in the first, or second, rotation direction, and the translation of the operating tie-rod 20 in the first, or second, displacement direction along the translation direction 120, when the actuation member 55 is operated by the user.
  • the actuation member 55 for example the crank element, can engage the displacement group 50 through an engagement device. This is configured in such a way to engage the actuation member 55 to the displacement group 50 only at the first working configuration, i.e.
  • the displacement group 50 can comprise, advantageously, a guide device 30 operatively connected to the push element 40.
  • the guide device 30 can be configured to guide the translation of the operating tie-rod 20 along the above mentioned translation direction 120 in the first, or in the second movement direction.
  • the guide device 30 can provide a slider element 35 slidingly mounted along a guide 32 oriented along the translation direction 120.
  • the push element 40 can be configured in such a way to move from the first working configuration of figure 5 to the second working configuration of figure 6 , when the slider element 30 reaches the middle point of its stroke along the guide 32.
  • the slider element 35 is arranged to engage the operating tie-rod 20 and an actuation arm 70.
  • the actuation arm 70 provides a first end 71 rotatably engaged to the slider element 35, in such a way to be able to rotate about a fourth rotation axis 170 orthogonal to the translation direction 120, and a second end 72 rotatably engaged to the second end portion 42 of the push element 40.
  • the operating tie-rod 20 and the actuation arm 70 are engaged to the slider element 35 at opposite sides.
  • the actuation member 55 can be configured to be actuated by a user in order to rotate, in a first, or a second, rotation direction, about a second rotation direction 155 orthogonal to the translation direction 120. More in particular, the movement transmission group 60 can be configured to cause the push element 40 to rotate about the first rotation axis 140, in the direction opposite to the rotation direction of the actuation member 55 about axis 155.
  • the movement transmission group 60 can comprise a transmission arm 65 having a first end 66 arranged to rotate about a third rotation axis 166 parallel to the first rotation axis 155, and a second end 67 operatively connected to the second end portion 42 of the push element 40 in such a way to cause the above mentioned rotation about axis 140. It is then provided a predetermined number of gears, in particular comprising 4 gear wheels 81-84, arranged to mesh each other in such a way to transmit the rotation caused by the user to the actuation member 55, preferably a crank element, about the rotation axis 155, to the above mentioned transmission arm 65.
  • the actuation member 55 can be pivoted on a rod 85 on which a first gear wheel 81 is mounted, which, thus, rotates integral to the rod on which the actuation member 55 is mounted.
  • a second gear wheel 82 is, furthermore, provided meshing with the first gear wheel 81.
  • the second gear wheel 82 is mounted on a shaft 86 on which a third gear wheel 83 is mounted that, therefore, rotates integral with the second gear wheel 82.
  • the third gear wheel 83 meshes with a fourth gear wheel 84, advantageously a circular sector, as shown in figures from 7 to 9. More precisely, the fourth gear wheel 84 is fitted on a transmission shaft 85 on which the first end 66 of the transmission arm 65 is mounted.
  • the second end 67 of the transmission arm 65 as well as the second end 72 of the actuation arm 70 and the second end portion 42 of the push element 40 are, instead, fitted on a shaft 75. Therefore, when the actuation member 55 is forced to rotate about axis 155 by a user, for example clockwise, as shown in figure 7 , through the above mentioned movement transmission group 60, a correspondent rotation of the transmission shaft 85 is caused and, therefore, of the transmission arm 65 about axis 166. This causes the push device 40 to rotate about axis 140 and, therefore, the operating tie-rod 20 to translate along the translation direction 120.
  • the push element 40 provides a spring 45, in particular a linear spring, arranged between a first and a second containment plates 46 and 47.
  • the first and the second containment plates 46 and 47 are operatively connected through a connection element 48 arranged longitudinally to the above mentioned linear spring 45.
  • the connection element 48 can comprise a first and a second portion 48a and 48b, respectively, fixed to the first and to the second containment plate 46 and 47, and movable one with respect to the other, for example through a telescopic connection, in order to lengthen, or shorten, the same in such a way to move the containment plates 46 and 47 away from each other, or bring these near to each other.
  • the device 1 for manually actuating a railroad switch can be directed both to railroad switches of trailable type, and to railroad switches of non-trailable type.
  • the geometry of the embodiment will be the one that is shown in the figures from 1 to 9. More precisely, the position of shaft 75, to which the second end 67 of transmission arm 65, the second end 72 of the actuation arm 70, and the second end 42 of the push element 40, are engaged with, is such that when the train passes over the railroad switch, in the direction opposite to that one admitted by the current position of the switch points 101 and 102, the force Ft exerted on device 1 by the train passing over the same is able to win the force that keeps the switch point 101, or 102, close to the respective rail stock 111, or 112, and, therefore, causes the switch points 101 and 102 to move, without damaging the actuation device 1.
  • the railroad switch moves from a configuration to the other when a predetermined threshold value Ft* is exceeded, that means when a stabilization load, which is set during the design step, is exceeded quale the switch points 101 and 102 of the railroad switch are set by the train up to reach a trailing load.
  • the embodiment will be the one shown in figure 10 . More precisely, as diagrammatically shown in figure 10 , in this case axis 175 of shaft 75 is positioned below the axis of tie-rod 20, of a distance dt, even though only few millimetres below. In this way, the railroad switch becomes of non-trailable type. In fact, the force Ft generated in this case by the train passing at the railroad switch in the direction opposite to that one admitted by the current position of the switch points 101 and 102, is not able to open the railroad switch same, that means to move the switch points 101 and 102, without damaging the actuation system.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Switches With Compound Operations (AREA)
EP19184113.9A 2018-07-10 2019-07-03 Betätigungsvorrichtung für eisenbahnweichen Pending EP3594083A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT201800007073 2018-07-10

Publications (1)

Publication Number Publication Date
EP3594083A1 true EP3594083A1 (de) 2020-01-15

Family

ID=63834400

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19184113.9A Pending EP3594083A1 (de) 2018-07-10 2019-07-03 Betätigungsvorrichtung für eisenbahnweichen

Country Status (1)

Country Link
EP (1) EP3594083A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113859305A (zh) * 2021-11-17 2021-12-31 中车长春轨道客车股份有限公司 一种轨道道岔管控装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191003935A (de) * 1910-02-17 1910-06-23 Hugh Alexander Thomson
GB224726A (en) * 1923-11-21 1924-11-20 Samuel Summerson Wrightson Improvements in or relating to railway and tramway switch boxes or ground levers
US2168790A (en) * 1937-11-27 1939-08-08 Union Switch & Signal Co Railway switch operating apparatus
GB538125A (en) * 1940-01-19 1941-07-22 Llewelyn Wynn Williams Improvements in and relating to two-way self reversing lever mechanism for operatingthe points of railway switch mechanism and the like
FR2905922A1 (fr) 2006-09-14 2008-03-21 Vossloh Cogifer Sa Mecanisme de manoeuvre d'aiguilles

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191003935A (de) * 1910-02-17 1910-06-23 Hugh Alexander Thomson
GB224726A (en) * 1923-11-21 1924-11-20 Samuel Summerson Wrightson Improvements in or relating to railway and tramway switch boxes or ground levers
US2168790A (en) * 1937-11-27 1939-08-08 Union Switch & Signal Co Railway switch operating apparatus
GB538125A (en) * 1940-01-19 1941-07-22 Llewelyn Wynn Williams Improvements in and relating to two-way self reversing lever mechanism for operatingthe points of railway switch mechanism and the like
FR2905922A1 (fr) 2006-09-14 2008-03-21 Vossloh Cogifer Sa Mecanisme de manoeuvre d'aiguilles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113859305A (zh) * 2021-11-17 2021-12-31 中车长春轨道客车股份有限公司 一种轨道道岔管控装置
CN113859305B (zh) * 2021-11-17 2023-08-08 中车长春轨道客车股份有限公司 一种轨道道岔管控装置

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