EP3607144A1 - Locking of points - Google Patents

Locking of points

Info

Publication number
EP3607144A1
EP3607144A1 EP18780906.6A EP18780906A EP3607144A1 EP 3607144 A1 EP3607144 A1 EP 3607144A1 EP 18780906 A EP18780906 A EP 18780906A EP 3607144 A1 EP3607144 A1 EP 3607144A1
Authority
EP
European Patent Office
Prior art keywords
locking
points
cylinder
points according
tongues
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
EP18780906.6A
Other languages
German (de)
French (fr)
Other versions
EP3607144A4 (en
Inventor
Jirí VENCLÍK
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.)
Dt Vyhybkarna A Strojirna AS
Original Assignee
Dt Vyhybkarna A Strojirna AS
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 Dt Vyhybkarna A Strojirna AS filed Critical Dt Vyhybkarna A Strojirna AS
Publication of EP3607144A1 publication Critical patent/EP3607144A1/en
Publication of EP3607144A4 publication Critical patent/EP3607144A4/en
Pending legal-status Critical Current

Links

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

Definitions

  • the technical solution relates to the construction of a locking of points with a cutting mechanism used to throw over the tongues of the points, especially for railway switches.
  • the main disadvantage of the present solution with an externally installed point-operating apparatus is the uneven distribution of the mass in the direction of the sleeper, or the asymmetric mass distribution relative to the track axis. Due to the operation, the trough sleeper with the point-operating apparatus is often rotated towards the more massive side, resulting in an undesired superelevation or steepness in the switch. This often causes failures of the geometric parameters of the track. All these facts lead to more frequent maintenance interventions, such as tamping. In particular on high-speed lines the dynamic behavior is very important in order to minimize the maintenance activity and to improve the comfort when passing through the switch.
  • the cylinder with the cutting mechanism is detachably connected by means of hinges with the tongues of the point.
  • the cylinder with the cutting mechanism is composed of a cube and two cover tubes, with a cam pivotally mounted in the cube being connected to the levers by involute grooving.
  • cam is furthermore advantageous for the cam to be keyed from both sides by means of plugs and the cutting levers being set in a vertical position.
  • the plugs are screwed through inserts with the endings, the endings being slidably placed in the hinges of the tongues.
  • An advantage of the present invention is that the hook rod of the locking and the mechanism of point-operating apparatus do not take part in the cutting of the point, so that the construction of the point-operating apparatus itself can be less robust and low in mass, which contributes to achieving a balanced distribution of masses around the track axis.
  • the abovementioned parts of the locking and point-operating apparatus are not stressed by high dynamic forces at the cutting of the point itself.
  • An advantage of the invention is also the provision of the hooks of the locking of points with rollers in order to reduce energy dissipation during throwing over, the hooks not being connected to the tongues.
  • FIG. 1 schematically shows an elevation view
  • Fig. 2 a plan view
  • Fig. 3 a sectional view of the cylinder with the cutting mechanism
  • Fig. 4 the throwing-over rod in elevation view and plan view.
  • the locking of points of Figs. 1, 2 comprises a cylinder i with a cutting mechanism which is slidably mounted in the frame 9 of the locking of points and connected by means of hinges 13 to the tongues 14 of the point.
  • the cylinder I with the cutting mechanism in Fig. 3 is composed of a cube 21 and two tubes 22.
  • the cam 23 pivotally mounted in the cube 21 is connected to the levers 24 by involute grooving.
  • the cam 23 is keyed from both sides by means of plugs 25 such that the levers 24 are set in a vertical position.
  • the pressing force that pushes the plugs 25 against the casing of the cube 21 is induced by means of springs 27.
  • the amount of the pressing force can be varied by means of nuts 26 which are screwed from both end sides into the tubes 22 of the cylinder 1 by varying the amount of the deformation of the springs 27.
  • the plugs 25 are screwed through inserts 28 with the endings 29 which are slidably placed in the grooves of the hinges 13.
  • the hook rod 2 is also slidably placed in the frame 9 of the locking of points.
  • the formed connection which is formed between the levers 24 of the cylinder 1 with the cutting mechanism and the pin 7 of the hook rod 2 assures the common operation of the abovementioned components of the locking of points.
  • the hooks 3 are pivotally connected to both ends of the hook rod 2 by means of eccentric pins 5.
  • the carrier 6 through which the pin 7 passes is clamped in the center of the hook rod 2 by means of screws ⁇ and as for the form by means of a radial peg 12.
  • the hooks 3 are provided with rollers 4. In the extreme positions of the tongues 14 one of the hooks 3 always engages behind the respective jaw 10.
  • the jaws JO are detachably connected by a screw connection with the stock rails 15 of the rail track.
  • the throwing-over rod 8 formed detachably of three parts 8JL, 8,2, 8.3, forms a sliding cam which cooperates on the hooks 3 of the locking of points and slidably passes through the jaws 10 of the stock rails 15.
  • the throw over the throwing-over rod 8 starts to move from the extreme position and begins to unlock the locked hook 3 in the jaw of the stock rail 10, thereby it simultaneously unlocks the locked tongue 14 of the point.
  • the hook rod 2 carries the cylinder 1, which throws over the tongues 14 of the point up to their extreme position. Subsequently, a further movement of the thro wing-over rod 8 locks the hook 3 in the jaw of the stock rail 10, thereby simultaneously locking the tongue 14 of the point as well.
  • the throwing-over rod throws over and locks the tongues in their extreme positions by means of a hook rod and a cylinder with a cutting mechanism.
  • the force acting on the free tongue 14 of the point occurs due to the attack of the flange of the rail wheel of the train axle on the free tongue 14 of the point.
  • the force acting on the free tongue 14 is transmitted over the hinge 13, the ending 29 and the insert 28 up to the plug 25. It acts against the force of the pressing spring 27, which deforms, and the plug 25 is ejected and releases the keying of the cam 23.
  • the release and rotation of the cam 23 occurs around its own axis.
  • the levers 24 lose the kinematic connection with the pin 7.
  • the cylinder 1 with the cutting mechanism is released from the hook rod 2, thereby releasing the tongues 14_of the point as well.
  • the restoration of the kinematic connection between the levers 24 and the pin 7 can be achieved by reverse throwing over of the locking of points.
  • the locking of points according to the present invention is designed for throwing over of the tongues of the points, particularly of railway switches.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

A railway switch blades locking device comprising a cylinder (1) with a vehicle force operated switching mechanism located between the switch blades (14) and, together with the hook rod (2), slidably mounted in the frame (9) of the locking device, wherein the hook rod (2) is on its ends equipped with hooks (3) controllable by means of a switch rod (8) placed in jaws (10) of stock rails (15) to switch and lock the switch blades (14).

Description

Locking of points
Field of invention
The technical solution relates to the construction of a locking of points with a cutting mechanism used to throw over the tongues of the points, especially for railway switches.
Background art
Among the currently known and most used lockings of points there is the dovetailed locking of points and the jawed locking of points. They are formed by hooks, jaws and a throwing-over rod, the hooks being firmly connected with the tongues of the point and the jaws with the stock rails. The throwing-over rod is slidably mounted in me jaws. The difference between these lockings is not significant and lies primarily in the orientation of the mechanism. The jawed locking is basically the dovetailed locking rotated by 90 °. This modification of the construction will guarantee a greater reliability of the function even when tongues creep due to thermal dilation. Both types of the lockings of points can be cut and are thrown over in the point by means of point-operating apparatus, the design of which must also enable the cutting function. These point-operating apparatus with a cutting mechanism are massive and are located on one side of the track axis in the trough sleeper or in the area between the sleepers.
The main disadvantage of the present solution with an externally installed point-operating apparatus is the uneven distribution of the mass in the direction of the sleeper, or the asymmetric mass distribution relative to the track axis. Due to the operation, the trough sleeper with the point-operating apparatus is often rotated towards the more massive side, resulting in an undesired superelevation or steepness in the switch. This often causes failures of the geometric parameters of the track. All these facts lead to more frequent maintenance interventions, such as tamping. In particular on high-speed lines the dynamic behavior is very important in order to minimize the maintenance activity and to improve the comfort when passing through the switch.
Summary of the technical solution
The above mentioned drawbacks are to a large extent eliminated by a locking of points according to the technical solution, the summary of which consists mainly in the fact that it comprises a cylinder with a cutting mechanism which is located between the tongues of the point and which, together with the hook rod, is slidably mounted in the frame of the locking of points, the hook rod being equipped with hooks at the ends for throwing over and locking of the tongues of the point in their extreme positions, by means of a throwing-over rod<mounted in the jaws of the stock rails.
From a functional point of view, it is advantageous if the cylinder with the cutting mechanism is detachably connected by means of hinges with the tongues of the point.
Furthermore, it is advantageous if the cylinder with the cutting mechanism is composed of a cube and two cover tubes, with a cam pivotally mounted in the cube being connected to the levers by involute grooving.
From a functional point of view it is furthermore advantageous for the cam to be keyed from both sides by means of plugs and the cutting levers being set in a vertical position.
From the point of view of the assembly, it is advantageous for the plugs to be screwed through inserts with the endings, the endings being slidably placed in the hinges of the tongues.
In order to ensure the joint operation of the lever and the cylindrical pin, it is advantageous to provide a formed connection between the cylinder levers with the cutting mechanism and the cylindrical pin of the hook rod.
Furthermore, it is advantageous to clamp the carrier, through which the pin passes, in the center of the hook rod by means of screws and as for the form by means of a radial pin.
An advantage of the present invention is that the hook rod of the locking and the mechanism of point-operating apparatus do not take part in the cutting of the point, so that the construction of the point-operating apparatus itself can be less robust and low in mass, which contributes to achieving a balanced distribution of masses around the track axis. The abovementioned parts of the locking and point-operating apparatus are not stressed by high dynamic forces at the cutting of the point itself.
It is useful, for a proper functioning, when the hooks are rotatable on the eccentric pins in the horizontal plane, allowing for the adjustment of the locking of points.
An advantage of the invention is also the provision of the hooks of the locking of points with rollers in order to reduce energy dissipation during throwing over, the hooks not being connected to the tongues.
Summary of the Figures in the drawings
The technical solution will be in more detail described using the drawings, in which Fig. 1 schematically shows an elevation view; Fig. 2 a plan view; Fig. 3 a sectional view of the cylinder with the cutting mechanism; and Fig. 4 the throwing-over rod in elevation view and plan view.
Embodiment examples of the technical solutions
The locking of points of Figs. 1, 2 comprises a cylinder i with a cutting mechanism which is slidably mounted in the frame 9 of the locking of points and connected by means of hinges 13 to the tongues 14 of the point. The cylinder I with the cutting mechanism in Fig. 3 is composed of a cube 21 and two tubes 22. The cam 23 pivotally mounted in the cube 21 is connected to the levers 24 by involute grooving. The cam 23 is keyed from both sides by means of plugs 25 such that the levers 24 are set in a vertical position. The pressing force that pushes the plugs 25 against the casing of the cube 21 is induced by means of springs 27. The amount of the pressing force can be varied by means of nuts 26 which are screwed from both end sides into the tubes 22 of the cylinder 1 by varying the amount of the deformation of the springs 27. The plugs 25 are screwed through inserts 28 with the endings 29 which are slidably placed in the grooves of the hinges 13.
The hook rod 2 is also slidably placed in the frame 9 of the locking of points. The formed connection which is formed between the levers 24 of the cylinder 1 with the cutting mechanism and the pin 7 of the hook rod 2 assures the common operation of the abovementioned components of the locking of points. The hooks 3 are pivotally connected to both ends of the hook rod 2 by means of eccentric pins 5. The carrier 6 through which the pin 7 passes is clamped in the center of the hook rod 2 by means of screws ϋ and as for the form by means of a radial peg 12. The hooks 3 are provided with rollers 4. In the extreme positions of the tongues 14 one of the hooks 3 always engages behind the respective jaw 10. The jaws JO are detachably connected by a screw connection with the stock rails 15 of the rail track.
The throwing-over rod 8 according to Fig. 4 formed detachably of three parts 8JL, 8,2, 8.3, forms a sliding cam which cooperates on the hooks 3 of the locking of points and slidably passes through the jaws 10 of the stock rails 15.
During the throw over the throwing-over rod 8 starts to move from the extreme position and begins to unlock the locked hook 3 in the jaw of the stock rail 10, thereby it simultaneously unlocks the locked tongue 14 of the point. After the hook 3 is unlocked/ the common working of the throwing-over rod 8 and the hook rod 2 sets in due to the force acting on the throwing-over rod 8 on the opposite hook 3. The hook rod 2 carries the cylinder 1, which throws over the tongues 14 of the point up to their extreme position. Subsequently, a further movement of the thro wing-over rod 8 locks the hook 3 in the jaw of the stock rail 10, thereby simultaneously locking the tongue 14 of the point as well.
Thus, during the throwing over the throwing-over rod throws over and locks the tongues in their extreme positions by means of a hook rod and a cylinder with a cutting mechanism.
During the cutting the force acting on the free tongue 14 of the point occurs due to the attack of the flange of the rail wheel of the train axle on the free tongue 14 of the point. The force acting on the free tongue 14 is transmitted over the hinge 13, the ending 29 and the insert 28 up to the plug 25. It acts against the force of the pressing spring 27, which deforms, and the plug 25 is ejected and releases the keying of the cam 23. In the limiting state where the plug 25 is ejected and is no longer in contact with the cam 23, the release and rotation of the cam 23 occurs around its own axis. The levers 24 lose the kinematic connection with the pin 7. The cylinder 1 with the cutting mechanism is released from the hook rod 2, thereby releasing the tongues 14_of the point as well. The restoration of the kinematic connection between the levers 24 and the pin 7 can be achieved by reverse throwing over of the locking of points.
Thus, during the cutting the levers are pulled out due to the operation of the cutting mechanism and subsequently the release of the cylinder with the cutting mechanism together with the tongues from the hook rod occurs, the hook rod remaining in the locked state.
Industrial applicability
The locking of points according to the present invention is designed for throwing over of the tongues of the points, particularly of railway switches.

Claims

PATENT CLAIMS
1. Locking of points characterized in that it comprises a cylinder (1) with a cutting mechanism which is located between the tongues (14) of the point and which, together with the hook rod (2), is slidably mounted in the frame (9) of the locking of points, the hook rod (2) being equipped with hooks (3) at the ends for throwing over and locking of the tongues (14) of the point in their extreme positions, by means of a thro wing-over rod (8) mounted in the jaws (10) of the stock rails (15).
2. Locking of points according to claim 1 characterized in that the cylinder (1) with the cutting mechanism is detachably connected by means of hinges (13) with the tongues (14) of the point.
3. Locking of points according to claims 1 and 2 characterized in that the cylinder (1) with the cutting mechanism is composed of a cube (21) and two cover tubes (22), with a cam (23) pivotally mounted in the cube (21) being connected to the levers (24) by involute grooving.
4. Locking of points according to claim 3 characterized in that the cam (23) is keyed from both sides by means of plugs (25) and the cutting levers (24) being set in a vertical position.
5. Locking of points according to claim 1 characterized in that the plugs (25) are screwed through inserts (28) with the endings (29), the endings (29) being slidably placed in the hinges (13) of the tongues (14).
6. Locking of points according to claim 1 characterized in that between the levers (24) of the cylinder (1) with the cutting mechanism and the cylinder pin (7) of the hook rod (2) a formed connection is formed which assures the common operation.
7. Locking of points according to claim 1 characterized in that the carrier (6), through which the pin (7) passes, is clamped in the center of the hook rod (2) by means of screws (11) and as for the form by means of a radial pin (12). Locking of points according to claim 1 characterized in that the hooks (3) are rotatable on eccentric pins (5).
Locking of points according to claim 1 characterized in that the hooks (3) are provided with rollers (4).
EP18780906.6A 2017-04-06 2018-04-03 Locking of points Pending EP3607144A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CZ2017-33584U CZ30652U1 (en) 2017-04-06 2017-04-06 Locking of points
PCT/CZ2018/000012 WO2018184603A1 (en) 2017-04-06 2018-04-03 Locking of points

Publications (2)

Publication Number Publication Date
EP3607144A1 true EP3607144A1 (en) 2020-02-12
EP3607144A4 EP3607144A4 (en) 2020-12-30

Family

ID=58699873

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18780906.6A Pending EP3607144A4 (en) 2017-04-06 2018-04-03 Locking of points

Country Status (3)

Country Link
EP (1) EP3607144A4 (en)
CZ (1) CZ30652U1 (en)
WO (1) WO2018184603A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6686096B2 (en) * 2018-10-12 2020-04-22 吉原鉄道工業株式会社 Switch adjuster and switch structure
JP6682597B2 (en) * 2018-10-12 2020-04-15 吉原鉄道工業株式会社 Switch adjuster and switch structure

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE506183C2 (en) * 1993-05-27 1997-11-17 Abb Daimler Benz Transp Device at railroad tracks for the change of track gear
AT401763B (en) * 1994-05-16 1996-11-25 Vae Ag DEVICE FOR LOCKING MOVABLE PARTS
DE19735099A1 (en) * 1997-08-13 1999-02-18 Butzbacher Weichenbau Gmbh Actuator
US7341226B2 (en) * 2004-11-17 2008-03-11 General Electric Company Movable point frog switching assembly
CZ20898U1 (en) * 2010-04-14 2010-05-17 DT-VÝHYBKÁRNA A STROJÍRNA, a.s. Hydraulic closure actuator with mechanical closing and locking

Also Published As

Publication number Publication date
WO2018184603A1 (en) 2018-10-11
EP3607144A4 (en) 2020-12-30
CZ30652U1 (en) 2017-05-09

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