Operating device for railway switches, particularly for high-speed lines
AssigneeSasib S.p.A.
InventorsUgo Callegari, Giovanni Gritti, Maurizio Biagiotti, Claudio Siliani
Life of this patent
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Abstract
An operating device for railroad switches, particularly for high-speed lines. To permit more stable positioning of the blades (A1,A2) and of the frog (C) of the switch, which in high-speed lines are of considerable length, in addition to the switching actuator (1) at the toes of the blades (A1,A2) and to that (3) of the frog (C), there are distributed along the blades (A1,A2) and along the frog (C) one or more further switching actuators (2,3'). The switching actuators (1,2) of the blades (A1,A2) and the switching actuators (3,3') of the frog (C) are of the hydraulic type and are controlled respectively by a hydraulic control unit (4,4').
Claims22
An operating device for a railway switch, the railway switch including first and second main rails, a frog, and first and second blades associated respectively with the first and second main rails, with each blade having a toe at one end, an intermediate portion, and a heel end at the other end, said operating device comprising:
- a hydraulic blade actuator means for switching the blades at the toes between a first position where the toe of the first blade is immediately adjacent the first main rail and the toe of the second blade is spaced from the second main rail and a second position where the toe of the first blade is spaced from the first main rail and the toe of the second blade is immediately adjacent the second main rail;
- a hydraulic frog actuator means for switching the frog between a first position where the frog is immediately adjacent the heel end of the first blade and spaced from the heel end of the second blade and a second position where the frog is immediately adjacent the heel end of the second blade and spaced from the heel end of the first blade;
- a hydraulic intermediate actuator means located between said blade actuator means and said frog actuator means for switching the intermediate portions of said blades between first and second positions which are consistent with the first and second positions of the toes of the blades;
- and
- a controlling means for controlling the hydraulic switching actions of said blade actuator means, said frog actuator means and said intermediate actuator means, said controlling means including
- a fluid reservoir containing a fluid,
- a pressure accumulator in which the fluid is accumulated under pressure, and
- a pump means for pumping the fluid from said reservoir to said accumulator under pressure, said pump means including an electric motor and a no-break power unit for said electric motor.
An operating device for a railway switch, the railway switch including first and second main rails, a frog, and first and second blades associated respectively with the first and second main rails, with each blade having a toe at one end, an intermediate portion, and a heel end at the other end, said operating device comprising:
- a hydraulic blade actuator means for switching the blades at the toes between a first position where the toe of the first blade is immediately adjacent the first main rail and the toe of the second blade is spaced from the second main rail and a second position where the toe of the first blade is spaced from the first main rail and the toe of the second blade is immediately adjacent the second main rail, said blade actuator means including a hydraulic actuator mechanism which moves the toes of the blades as a unit;
- a hydraulic frog actuator means for switching the frog between a first position where the frog is immediately adjacent the heel end of the first blade and spaced from the heel of the second blade and a second position where the frog is immediately adjacent the heel end of the second blade and spaced from the heel end of the first blade, said frog actuator means including at least two hydraulic actuator mechanisms which are spaced from one another and which move associated portion of the frog as a unit;
- a hydraulic intermediate actuator means located between said blade actuator means and said frog actuator means for switching the intermediate portions of said blades between first and second positions which are consistent with the first and second positions of the blades, said intermediate actuator means including at least two hydraulic actuator mechanisms which are spaced from one another and which move associated intermediate portions of the blades as a unit;
- and
- a controlling means for controlling the hydraulic switching actions of said actuator mechanisms of said blade actuator means, of said frog actuator means, and of said intermediate actuator means;
- wherein each of said actuator means further includes a switch lock mechanism including (a) a trip locking means for locking the associated said actuating mechanism in first and second positions associated with said first and second positions of the associated said blade or frog, (b) a coupling means for coupling the associated said blade or frog to said actuating mechanism and for locking the associated said blade or frog in said first and second positions against movement therefrom not caused by said actuating mechanism, (c) an electrical monitoring means for monitoring the position of the associated said blade or frog and (d) a stationary casing having indentations therein;
- and wherein said trip locking means includes a switching slide connected to said actuating mechanism, locking rods extending in opposite directions from said switching slide, an elastic means for urging said locking rods away from said switching slide, and a respective roller at a distal end of said locking rods which rolls along said casing and into said indentations to lock the actuating mechanism in the first and second positions thereof.
Dependencies are inferred from the claim text.